Update mszostok/codeowners-validator action to v0.7.4

Author: renovate[bot]

.github/workflows/shared-codeowners.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - uses: mszostok/codeowners-validator@v0.7.1
+      - uses: mszostok/codeowners-validator@v0.7.4
         # Pull request from a fork
         name: "Validate CODEOWNERS"
         with: