Fix multi-path artifact upload for verified action

The verified upload action doesn't support multi-line path parameters
like actions/upload-artifact@v4 does. Split the FlatBuffers upload
into two separate artifacts:

- flatbuffers-gen-${{ matrix.python-env }} for src/autobahn/wamp/gen/
- flatbuffers-schema-${{ matrix.python-env }} for src/autobahn/wamp/flatbuffers/

Also update release.yml to download both artifact types.

Note: This work was completed with AI assistance (Claude Code).

Author: oberstet

.github/workflows/main.yml

@@ -508,13 +508,20 @@ jobs:
             exit 1
           fi
 
-      - name: Upload FlatBuffers artifacts
+      # Upload FlatBuffers artifacts (split into two uploads since verified action
+      # doesn't support multi-line paths like actions/upload-artifact@v4)
+      - name: Upload FlatBuffers generated code
+        uses: wamp-proto/wamp-cicd/actions/upload-artifact-verified@main
+        with:
+          name: flatbuffers-gen-${{ matrix.python-env }}
+          path: src/autobahn/wamp/gen/
+          retention-days: 7
+
+      - name: Upload FlatBuffers schema files
         uses: wamp-proto/wamp-cicd/actions/upload-artifact-verified@main
         with:
           name: flatbuffers-schema-${{ matrix.python-env }}
-          path: |
-            src/autobahn/wamp/gen/
-            src/autobahn/wamp/flatbuffers/
+          path: src/autobahn/wamp/flatbuffers/
           retention-days: 7
 
   build-package:

.github/workflows/release.yml

@@ -465,8 +465,36 @@ jobs:
           github-token: ${{ secrets.GITHUB_TOKEN }}
         continue-on-error: true
 
-      # Download FlatBuffers schema artifacts (explicit enumeration for each matrix env)
-      - name: Download FlatBuffers schema artifacts (cpy314)
+      # Download FlatBuffers generated code (explicit enumeration for each matrix env)
+      - name: Download FlatBuffers generated code (cpy314)
+        uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
+        with:
+          name: flatbuffers-gen-cpy314
+          path: flatbuffers-gen/cpy314/
+          run-id: ${{ needs.check-all-workflows.outputs.main_run_id }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+        continue-on-error: true
+
+      - name: Download FlatBuffers generated code (cpy311)
+        uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
+        with:
+          name: flatbuffers-gen-cpy311
+          path: flatbuffers-gen/cpy311/
+          run-id: ${{ needs.check-all-workflows.outputs.main_run_id }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+        continue-on-error: true
+
+      - name: Download FlatBuffers generated code (pypy311)
+        uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
+        with:
+          name: flatbuffers-gen-pypy311
+          path: flatbuffers-gen/pypy311/
+          run-id: ${{ needs.check-all-workflows.outputs.main_run_id }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+        continue-on-error: true
+
+      # Download FlatBuffers schema files (explicit enumeration for each matrix env)
+      - name: Download FlatBuffers schema files (cpy314)
         uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
         with:
           name: flatbuffers-schema-cpy314
@@ -475,7 +503,7 @@ jobs:
           github-token: ${{ secrets.GITHUB_TOKEN }}
         continue-on-error: true
 
-      - name: Download FlatBuffers schema artifacts (cpy311)
+      - name: Download FlatBuffers schema files (cpy311)
         uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
         with:
           name: flatbuffers-schema-cpy311
@@ -484,7 +512,7 @@ jobs:
           github-token: ${{ secrets.GITHUB_TOKEN }}
         continue-on-error: true
 
-      - name: Download FlatBuffers schema artifacts (pypy311)
+      - name: Download FlatBuffers schema files (pypy311)
         uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
         with:
           name: flatbuffers-schema-pypy311
@@ -1266,8 +1294,36 @@ jobs:
           github-token: ${{ secrets.GITHUB_TOKEN }}
         continue-on-error: true
 
-      # Download FlatBuffers schema artifacts (explicit enumeration for each matrix env)
-      - name: Download FlatBuffers schema artifacts (cpy314)
+      # Download FlatBuffers generated code (explicit enumeration for each matrix env)
+      - name: Download FlatBuffers generated code (cpy314)
+        uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
+        with:
+          name: flatbuffers-gen-cpy314
+          path: flatbuffers-gen/cpy314/
+          run-id: ${{ needs.check-all-workflows.outputs.main_run_id }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+        continue-on-error: true
+
+      - name: Download FlatBuffers generated code (cpy311)
+        uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
+        with:
+          name: flatbuffers-gen-cpy311
+          path: flatbuffers-gen/cpy311/
+          run-id: ${{ needs.check-all-workflows.outputs.main_run_id }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+        continue-on-error: true
+
+      - name: Download FlatBuffers generated code (pypy311)
+        uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
+        with:
+          name: flatbuffers-gen-pypy311
+          path: flatbuffers-gen/pypy311/
+          run-id: ${{ needs.check-all-workflows.outputs.main_run_id }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+        continue-on-error: true
+
+      # Download FlatBuffers schema files (explicit enumeration for each matrix env)
+      - name: Download FlatBuffers schema files (cpy314)
         uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
         with:
           name: flatbuffers-schema-cpy314
@@ -1276,7 +1332,7 @@ jobs:
           github-token: ${{ secrets.GITHUB_TOKEN }}
         continue-on-error: true
 
-      - name: Download FlatBuffers schema artifacts (cpy311)
+      - name: Download FlatBuffers schema files (cpy311)
         uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
         with:
           name: flatbuffers-schema-cpy311
@@ -1285,7 +1341,7 @@ jobs:
           github-token: ${{ secrets.GITHUB_TOKEN }}
         continue-on-error: true
 
-      - name: Download FlatBuffers schema artifacts (pypy311)
+      - name: Download FlatBuffers schema files (pypy311)
         uses: wamp-proto/wamp-cicd/actions/download-artifact-verified@main
         with:
           name: flatbuffers-schema-pypy311