buildx failed with: ERROR: failed to solve: process "/bin/sh -c CGO_ENABLED=0 go build -ldflags=\"-s -w -X main.version=${VERSION} -X main.commit=$(git rev-parse HEAD) -X main.date=$(date -u +%Y-%m-%dT%H:%M:%SZ)\" -o github-mcp-server cmd/github-mcp-server/main.go" did not complete successfully: exit code: 1