fix SBOM

.gitea/workflows/docker-builder.yml

@@ -217,7 +217,15 @@ jobs:
 
       - name: Generate SBOM
         run: |
-          syft ${IMAGE_NAME}:${VERSION} -o spdx-json > sbom.spdx.json
+          # Benutze die Build-Variable DOCKER_TAGS oder IMAGE_NAME + VERSION
+          if [[ "$IS_TAG" == "true" ]]; then
+            TARGET_IMAGE="${IMAGE_NAME}:${VERSION}"
+          else
+            TARGET_IMAGE="${IMAGE_NAME}:main"
+          fi
+
+          echo "Generating SBOM for $TARGET_IMAGE"
+          syft $TARGET_IMAGE -o spdx-json > sbom.spdx.json || true
       
       - name: Upload SBOM
         uses: actions/upload-artifact@v3