Bump lannonbr/issue-label-manager-action from 2.0.0 to 3.0.0

Bumps [lannonbr/issue-label-manager-action](https://github.com/lannonbr/issue-label-manager-action) from 2.0.0 to 3.0.0.
- [Release notes](https://github.com/lannonbr/issue-label-manager-action/releases)
- [Changelog](https://github.com/lannonbr/issue-label-manager-action/blob/master/CHANGELOG.md)
- [Commits](https://github.com/lannonbr/issue-label-manager-action/compare/2.0.0...3.0.0)

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/labels_sync.yaml

@@ -9,6 +9,6 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2.3.4
-      - uses: lannonbr/issue-label-manager-action@2.0.0
+      - uses: lannonbr/issue-label-manager-action@3.0.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}