Update mszostok/codeowners-validator action to v0.7.4 (#41)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/validate-codeowners.yml

@@ -10,7 +10,7 @@ jobs:
     steps:
     - name: "Checkout source code at current commit"
       uses: actions/checkout@v2
-    - uses: mszostok/[email protected].1
+    - uses: mszostok/[email protected].4
       if: github.event.pull_request.head.repo.full_name == github.repository
       name: "Full check of CODEOWNERS"
       with:
@@ -21,7 +21,7 @@ jobs:
         owner_checker_allow_unowned_patterns: "false"
         # GitHub access token is required only if the `owners` check is enabled
         github_access_token: "${{ secrets.PUBLIC_REPO_ACCESS_TOKEN }}"
-    - uses: mszostok/[email protected].1
+    - uses: mszostok/[email protected].4
       if: github.event.pull_request.head.repo.full_name != github.repository
       name: "Syntax check of CODEOWNERS"
       with: