match v1.* tags

Author: yury-s

.azure-pipelines/publish.yml

@@ -37,8 +37,8 @@ extends:
             artifact: esrp-build
         steps:
         - bash: |
-            if [[ ! "$CURRENT_BRANCH" =~ ^release-.* ]]; then
-              echo "Can only publish from a release branch."
+            if [[ ! "$CURRENT_BRANCH" =~ ^v1\\..* ]]; then
+              echo "Can only publish from a release tag branch (v1.*)."
               echo "Unexpected branch name: $CURRENT_BRANCH"
               exit 1
             fi