use new trustedAuthors flag in CI action (#2992)

.github/workflows/lockfiles.yaml

@@ -8,7 +8,6 @@ jobs:
     lockfiles:
         runs-on: ubuntu-latest
         name: Verify lock file integrity
-        if: ${{ github.actor != 'kevinpapst' && github.actor != 'dependabot[bot]' }}
         steps:
             - name: Clone Kimai
               uses: actions/checkout@v2
@@ -17,3 +16,4 @@ jobs:
               with:
                   githubToken: ${{ secrets.GITHUB_TOKEN }}
                   pattern: .*.lock
+                  trustedAuthors: kevinpapst, dependabot