fix: use --multi-arch all flag for multi-platform Docker push (#315)

Changed skopeo copy commands from --all to --multi-arch all to properly
handle OCI archives containing manifest lists with both linux/amd64 and
linux/arm64 images.

The --all flag is for copying all tags, while --multi-arch all is
specifically for copying all architectures from a manifest list.

This fixes the error: "more than one image in oci, choose an image"

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <[email protected]>

Author: sapientpants

.changeset/fix-multi-platform-docker-push.md

@@ -0,0 +1,9 @@
+---
+'sonarqube-mcp-server': patch
+---
+
+Fix multi-platform Docker image publishing to Docker Hub
+
+- Change skopeo `--all` flag to `--multi-arch all` for proper OCI manifest list handling
+- Ensures both linux/amd64 and linux/arm64 images are pushed correctly
+- Fixes error: "more than one image in oci, choose an image"

.github/workflows/publish.yml

@@ -386,7 +386,7 @@ jobs:
           # Use skopeo to push from OCI archive directly to Docker Hub
           # This preserves multi-platform manifest lists
           skopeo copy \
-            --all \
+            --multi-arch all \
             oci-archive:./docker-artifact/${{ steps.artifact.outputs.artifact_name }}.tar \
             docker://$TARGET_REPO:$VERSION
 
@@ -395,9 +395,9 @@ jobs:
           MAJOR=$(echo "$VERSION" | cut -d. -f1)
           MINOR=$(echo "$VERSION" | cut -d. -f2)
 
-          skopeo copy docker://$TARGET_REPO:$VERSION docker://$TARGET_REPO:latest
-          skopeo copy docker://$TARGET_REPO:$VERSION docker://$TARGET_REPO:$MAJOR
-          skopeo copy docker://$TARGET_REPO:$VERSION docker://$TARGET_REPO:$MAJOR.$MINOR
+          skopeo copy --multi-arch all docker://$TARGET_REPO:$VERSION docker://$TARGET_REPO:latest
+          skopeo copy --multi-arch all docker://$TARGET_REPO:$VERSION docker://$TARGET_REPO:$MAJOR
+          skopeo copy --multi-arch all docker://$TARGET_REPO:$VERSION docker://$TARGET_REPO:$MAJOR.$MINOR
 
           echo "✅ Docker image published successfully"