Bump robvanderleek/create-issue-branch

Bumps [robvanderleek/create-issue-branch](https://github.com/robvanderleek/create-issue-branch) from dc1203d98ff20e6cdda2e6e46376f70273659a20 to b12573b6e612bb9ef55c7b1053411b66d2ae0dfe.
- [Release notes](https://github.com/robvanderleek/create-issue-branch/releases)
- [Commits](robvanderleek/create-issue-branch@dc1203d...b12573b)

---
updated-dependencies:
- dependency-name: robvanderleek/create-issue-branch
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/create-branch-on-assignment.yml

@@ -16,6 +16,6 @@ jobs:
           egress-policy: audit
 
       - name: Create Issue Branch
-        uses: robvanderleek/create-issue-branch@dc1203d98ff20e6cdda2e6e46376f70273659a20 # main
+        uses: robvanderleek/create-issue-branch@b12573b6e612bb9ef55c7b1053411b66d2ae0dfe # main
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}