fix: quote if condition to fix YAML parsing error

The colon in 'DECISION: REJECT' was causing YAML parsing issues.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: vinta

.github/workflows/claude-pr-review.yml

@@ -49,7 +49,7 @@ jobs:
             DECISION: REJECT or DECISION: PASS
 
       - name: Close PR if rejected
-        if: contains(steps.claude-review.outputs.response, 'DECISION: REJECT')
+        if: "contains(steps.claude-review.outputs.response, 'DECISION: REJECT')"
         env:
           GH_TOKEN: ${{ github.token }}
         run: |