Update actions/upload-artifact action to v7 (#1037)

| datasource  | package                 | from | to |
| ----------- | ----------------------- | ---- | -- |
| github-tags | actions/upload-artifact | v6   | v7 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -85,7 +85,7 @@ jobs:
           cp out/sbom.spdx.json linux-amd64-nginx-${{ matrix.nginx_version }}-ngx_http_module.so.sbom.spdx.json
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: nginx-opentracing-modules-${{ matrix.nginx_version }}
           path: linux-*-nginx-${{ matrix.nginx_version }}-ngx_http_module.so.*

.github/workflows/docker-openresty.yml

@@ -99,7 +99,7 @@ jobs:
         if: always()
 
       - name: Upload Scan Results
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         continue-on-error: true
         with:
           name: scan-results-openresty

.github/workflows/docker.yml

@@ -118,7 +118,7 @@ jobs:
         if: always()
 
       - name: Upload Scan Results
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         continue-on-error: true
         with:
           name: scan-results-${{ matrix.os }}

.github/workflows/system-testing.yml

@@ -87,7 +87,7 @@ jobs:
         working-directory: test
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: test-log