fix: push RPM to PSI gitea

Author: d-perl

.github/workflows/release.yaml

@@ -51,4 +51,13 @@ jobs:
     - uses: actions/upload-artifact@v4
       with:
         name: RPM artifact
-        path: target/generate-rpm/*.rpm
+        path: target/generate-rpm/*.rpm
+      
+    - name: Push to Gitea registry
+      run: |
+          for pkg in target/generate-rpm/*.rpm; do
+            curl -X PUT \
+              --user "${{ secrets.GITEA_REGISTRY_TOKEN }}" \
+              --upload-file  "$pkg" \
+              "https://gitea.psi.ch/api/packages/bec/rpm/upload"
+          done