fix: trim whitespace from workflow_dispatch tag input

.github/workflows/publish-packages.yml

@@ -32,6 +32,7 @@ jobs:
           else
             TAG="${{ github.event.workflow_run.head_branch }}"
           fi
+          TAG="$(echo "${TAG}" | xargs)"
           VERSION="${TAG#v}"
           if [[ ! "${VERSION}" =~ ^[0-9]+\.[0-9]+\.[0-9]+ ]]; then
             echo "::error::Tag '${TAG}' does not look like a semver version."