fix(changelog): generating failed due to missing write permissions

Author: 99linesofcode

.github/workflows/changelog.yaml

@@ -3,6 +3,10 @@ on:
   push:
     branches:
       - main
+# Give the default GITHUB_TOKEN write permission to commit and push the updated CHANGELOG back to the repository.
+# https://github.blog/changelog/2023-02-02-github-actions-updating-the-default-github_token-permissions-to-read-only/
+permissions:
+  contents: write
 jobs:
   deploy:
     uses: 99linesofcode/.github/.github/workflows/changelog.yaml@main