ci: Fix editing of PR badge (#40)

Author: kylebarron

.github/workflows/conventional-commits.yml

@@ -8,7 +8,8 @@ jobs:
   validate-pr-title:
     runs-on: ubuntu-latest
     permissions:
-      pull-requests: read
+      pull-requests: write
+      issues: write
     steps:
       - name: PR Conventional Commit Validation
         uses: ytanikin/pr-conventional-commits@1.4.0