fix: add workflow permissions for changesets action

- Add contents:write and pull-requests:write permissions to release workflow
- Create changeset for the fix

Author: graffhyrum

.changeset/0008-workflow-permissions-fix.md

@@ -0,0 +1,5 @@
+---
+"pendragon-coding": patch
+---
+
+Fix release workflow permissions to allow changesets action to create release branches and PRs.

.github/workflows/release.yml

@@ -11,6 +11,9 @@ jobs:
   release:
     name: Release
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
     steps:
       - name: Checkout code
         uses: actions/checkout@v5