Use GITHUB_REF_NAME instead of GITHUB_REF

Previously the workflow was using GITHUB_REF which is refs/heads/tag-name instead of tag-name. This has been fixed.

.github/workflows/lambda_release.yml

@@ -23,9 +23,9 @@ jobs:
 
     - name: Create release tags for Lambda and K8s Init Containers
       run: |
-        RELEASE_TITLE="New Relic Ruby Agent ${GITHUB_REF}.0"
-        RELEASE_TAG="${GITHUB_REF}.0_ruby"
-        RELEASE_NOTES="Automated release for [Ruby Agent ${GITHUB_REF}](https://github.com/newrelic/newrelic-ruby-agent/releases/tag/${GITHUB_REF})"
+        RELEASE_TITLE="New Relic Ruby Agent ${GITHUB_REF_NAME}.0"
+        RELEASE_TAG="${GITHUB_REF_NAME}.0_ruby"
+        RELEASE_NOTES="Automated release for [Ruby Agent ${GITHUB_REF_NAME}](https://github.com/newrelic/newrelic-ruby-agent/releases/tag/${GITHUB_REF_NAME})"
         gh auth login --with-token <<< $GH_RELEASE_TOKEN
         echo "newrelic/newrelic-lambda-layers - Releasing ${RELEASE_TITLE} with tag ${RELEASE_TAG}"
         gh release create "${RELEASE_TAG}" --title=${RELEASE_TITLE} --repo=newrelic/newrelic-lambda-layers --notes=${RELEASE_NOTES}