chore(deps): update dbelyaev/action-checkstyle action to v0.9.3

Author: renovate[bot]

.github/workflows/github-actions-demo.yml

@@ -31,7 +31,7 @@ jobs:
           java-version: ${{ matrix.java }}
           distribution: 'zulu'
       - name: Checkstyle for Java
-        uses: dbelyaev/action-checkstyle@v0.7.4
+        uses: dbelyaev/action-checkstyle@v0.9.3
         with:
           github_token: ${{ github.token }}
           workdir: . # optional, default is .