fix(ci): link autofix commits to the bot account (#148)

Use the bot account id in the noreply email so GitHub attaches the
app logo. The App id prefix pushes a commit that stays unlinked.

.github/workflows/ci-autofix.yaml

@@ -258,7 +258,7 @@ jobs:
           SKIP_BOT: ${{ steps.skip-bot.outputs.skip }}
           HEAD_REF: ${{ github.head_ref }}
           APP_SLUG: ${{ steps.app-token.outputs.app-slug }}
-          APP_ID: ${{ secrets.AUTOFMT_APP_ID }}
+          APP_TOKEN: ${{ steps.app-token.outputs.token }}
         run: |
           set -euo pipefail
 
@@ -272,8 +272,16 @@ jobs:
             exit 1
           fi
 
+          # The noreply local-part must be the bot account id, not the App id.
+          # An App-id prefix still pushes, but GitHub does not link the commit
+          # to the bot, so the app logo is not used.
+          bot_id=$(curl -fsSL \
+            -H "Authorization: Bearer ${APP_TOKEN}" \
+            -H "Accept: application/vnd.github+json" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            "https://api.github.com/users/${APP_SLUG}%5Bbot%5D" | jq -er '.id')
           git config user.name "${APP_SLUG}[bot]"
-          git config user.email "${APP_ID}+${APP_SLUG}[bot]@users.noreply.github.com"
+          git config user.email "${bot_id}+${APP_SLUG}[bot]@users.noreply.github.com"
 
           if [ -z "$(git status --porcelain)" ]; then
             echo "Tree is clean; no formatter commit."