devops: trigger publish on new tag (#1787)

.azure-pipelines/publish.yml

@@ -1,6 +1,10 @@
-trigger: none
 pr: none
 
+trigger:
+  tags:
+    include:
+    - '*'
+
 resources:
   repositories:
   - repository: 1esPipelines
@@ -33,8 +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