chore: set wg-releases as CODEOWNER for AppVeyor configs (#41485)

.github/CODEOWNERS

@@ -11,6 +11,9 @@ DEPS                                    @electron/wg-upgrades
 /docs/breaking-changes.md               @electron/wg-releases
 /npm/                                   @electron/wg-releases
 /script/release                         @electron/wg-releases
+appveyor.yml                            @electron/wg-releases
+appveyor-bake.yml                       @electron/wg-releases
+appveyor-woa.yml                        @electron/wg-releases
 
 # Security WG
 /lib/browser/devtools.ts                @electron/wg-security

.github/workflows/update_appveyor_image.yml

@@ -68,6 +68,6 @@ jobs:
     - name: (Optionally) Create Pull Request
       if: ${{ env.APPVEYOR_IMAGE_VERSION }}
       run: |
-        printf "This PR updates appveyor.yml to the latest baked image, ${{ env.APPVEYOR_IMAGE_VERSION }}.\n\nNotes: none" | gh pr create --head bump-appveyor-image --reviewer electron/wg-releases --label no-backport --label semver/none --title 'build: update appveyor image to latest version' --body-file=-
+        printf "This PR updates appveyor.yml to the latest baked image, ${{ env.APPVEYOR_IMAGE_VERSION }}.\n\nNotes: none" | gh pr create --head bump-appveyor-image --label no-backport --label semver/none --title 'build: update appveyor image to latest version' --body-file=-
       env:
         GITHUB_TOKEN: ${{ steps.generate-token.outputs.token }}