Remove trailing slash in schema-deploy script (#2903)

Author: gbrodman

release/cloudbuild-schema-deploy.yaml

@@ -83,7 +83,7 @@ steps:
   - |
     set -e
     echo ${TAG_NAME} | \
-      gcloud storage cp - gs://$PROJECT_ID-deployed-tags/sql.${_ENV}.tag\
+      gcloud storage cp - gs://$PROJECT_ID-deployed-tags/sql.${_ENV}.tag
     # Copy the schema jar here
     gcloud storage cp gs://$PROJECT_ID-deploy/${TAG_NAME}/schema.jar \
       gs://$PROJECT_ID-deployed-tags/schema-test-artifacts/schema.${_ENV}.jar