Fix version bump permission issues by adding contents write permission

Co-authored-by: chrisribe <1999791+chrisribe@users.noreply.github.com>

Author: Copilot

.github/workflows/auto-version-bump.yml

@@ -12,6 +12,9 @@ jobs:
   bump-version:
     runs-on: ubuntu-latest
 
+    permissions:
+      contents: write
+    
     # Skip if commit message contains [skip-version] or is from the bot itself
     if: "!contains(github.event.head_commit.message, '[skip-version]') && github.event.head_commit.author.name != 'github-actions[bot]'"