fix action with prefix matching

.forgejo/workflows/release-tag/web.yaml

@@ -29,17 +29,26 @@ jobs:
           echo "RELEASE_TAG=$release_tag" >> $GITHUB_ENV
           echo "The release tag will be '${release_tag}'"
 
+      - name: Extract version number from RELEASE_TAG
+        run: |
+          release_tag=${{ env.RELEASE_TAG }}
+          version_number="${release_tag#ws-office-}"
+          echo "VERSION_NUMBER=$version_number" >> $GITHUB_ENV
+          echo "Version number: '${version_number}'"
+
+      - name: Package URL
+        run: |
+          package_url="git2.workstreams.ch/workstreams-os/ws-office-prod:${{ env.VERSION_NUMBER }}"
+          echo "PACKAGE_URL=$package_url" >> $GITHUB_ENV
+          echo "PACKAGE URL: $package_url"
+
       - name: Set PRODUCT_VERSION and BUILD_NUMBER
         run: |
           export $(grep -v '^#' .env | xargs)
           echo "PRODUCT_VERSION=$product_version" >> $GITHUB_ENV
           echo "BUILD_NUMBER=$build_number" >> $GITHUB_ENV
-
-      - name: Extract version number from RELEASE_TAG
-        run: |
-          version_number=${{ env.RELEASE_TAG#ws-office- }}
-          echo "VERSION_NUMBER=$version_number" >> $GITHUB_ENV
-          echo "Version number: '${version_number}'"
+          echo "PRODUCT_VERSION: '${product_version}'"
+          echo "BUILD_NUMBER: '${build_number}'"
 
       - name: Docker Build
         uses: https://github.com/docker/build-push-action@v4
@@ -55,7 +64,7 @@ jobs:
             linux/amd64
           push: true
           tags: |
-            git2.workstreams.ch/workstreams-os/ws-office-prod:${{ env.VERSION_NUMBER }}
+            ${{ env.PACKAGE_URL }}
           # cache-from: type=local,src=/tmp/.buildx-cache
           # cache-to: type=local,dest=/tmp/.buildx-cache-new,mode=max