Merge pull request #266 from klutchell/klutchell-patch-1

Switch to GitHub App Installation token authentication

Author: klutchell-flowzone[bot]

.github/workflows/flowzone.yml

@@ -21,7 +21,8 @@ jobs:
         github.event_name == 'pull_request_target'
       )
     secrets:
-      FLOWZONE_TOKEN: ${{ secrets.FLOWZONE_TOKEN }}
+      GH_APP_PRIVATE_KEY: ${{ secrets.GH_APP_PRIVATE_KEY }}
       BALENA_API_KEY: ${{ secrets.BALENA_API_KEY }}
     with:
       balena_slugs: gh_klutchell/exit-node
+      token_retrieval_mode: user