Revert "fix: use pat for bcr mirror"

This reverts commit ea7a3e4549.

.github/workflows/bcr.yml

@@ -30,8 +30,6 @@ env:
   # String containing submitters to tag
   SUBMITTERS: "@alexeagle, @kormide"
 
-  TOKEN: ${{ secrets.BCR_ALEXEAGLE_PAT }}
-
 jobs:
   bcr-pull-request:
     runs-on: ubuntu-latest
@@ -54,13 +52,18 @@ jobs:
         with:
           repository: ${{ env.BCR }}
           path: bcr
+      - uses: tibdex/github-app-token@v1
+        id: generate-token
+        with:
+          app_id: ${{ secrets.BCR_APP_ID }}
+          private_key: ${{ secrets.BCR_APP_PRIVATE_KEY }}
       - name: Create bcr entry
         run: node .github/workflows/create-bcr-entry.mjs project bcr $GITHUB_REPOSITORY ${{ steps.get_tag.outputs.TAG }}
       - name: Create Pull Request
         id: post_pr
         uses: peter-evans/create-pull-request@v4
         with:
-          token: ${{ env.TOKEN }}
+          token: ${{ steps.generate-token.outputs.token }}
           path: bcr
           push-to-fork: ${{ env.BCR_FORK }}
           commit-message: ${{ github.repository }}@${{ steps.get_tag.outputs.TAG }}