Give the releaser write permissions to the repo. (#116)

This is a known issue documented in softprops/action-gh-release#236 (comment)

Fixes #64

Author: matts1

.github/workflows/release.yml

@@ -8,6 +8,9 @@ on:
     tags:
       - "v*.*.*"
 
+permissions:
+  contents: write
+
 jobs:
   release:
     uses: bazel-contrib/.github/.github/workflows/release_ruleset.yaml@v6