gha script requires a token in the environment (#7787)

Author: ironage

.github/workflows/prepare-release.yml

@@ -23,6 +23,8 @@ jobs:
       - name: Change Version
         run: tools/release-init.sh ${{ inputs.version }}
         shell: bash
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} # the gh command in the release script requires this token
       - name: Create Release PR
         id: prepare-pr
         uses: peter-evans/create-pull-request@6d6857d36972b65feb161a90e484f2984215f83e #! 6.0.5