Prevent update_version job from running on changelog update branches

Author: xterao

.github/workflows/release-drafter.yml

@@ -10,6 +10,7 @@ on:
 
 jobs:
   update_release_draft:
+    if: "! (github.head_ref =~ '^doc/changelog-update-\\d+\\.\\d+\\.\\d+$')"
     permissions:
       contents: write
       pull-requests: write
@@ -25,6 +26,7 @@ jobs:
 
   update_version:
     needs: update_release_draft
+    if: "! (github.head_ref =~ '^doc/changelog-update-\\d+\\.\\d+\\.\\d+$')"
     runs-on: ubuntu-latest
     timeout-minutes: 30
     permissions: