fix: podman create requires dummy command for static plugin images (#2551)

fix: provide dummy command to podman create for static plugin images

Plugin OCI images are static file bundles with no CMD or ENTRYPOINT.
Running 'podman create' without a command argument fails with:
  Error: no command or entrypoint provided, and no CMD or ENTRYPOINT from image

Fix: Pass /bin/true as a dummy command. The container is never run,
just created so we can extract files with podman cp.

Fixes instrumentation job failure on PR #2550.
Ref: https://github.com/redhat-developer/rhdh-plugin-export-overlays/actions/runs/26902663501

Author: gustavolira

scripts/instrument-plugin.sh

@@ -115,7 +115,8 @@ while IFS= read -r PROD_IMAGE; do
 
   # Create temp container and extract plugin bundle
   WORK_DIR=$(mktemp -d)
-  CID=$(podman create "$PROD_IMAGE")
+  # Plugin images are static bundles with no CMD/ENTRYPOINT, so we provide a dummy command
+  CID=$(podman create "$PROD_IMAGE" /bin/true)
 
   if ! podman cp "$CID:$PLUGIN_PATH/dist" "$WORK_DIR/dist-original"; then
     echo "  ❌ Failed to extract plugin bundle from container - skipping"