GitHub Actions: use actions/checkout@v3

Author: x70b1

.github/workflows/codecheck.yml

@@ -8,9 +8,12 @@ jobs:
         run: |
             wget -O /opt/shellcheck-stable.linux.x86_64.tar.xz https://github.com/koalaman/shellcheck/releases/download/stable/shellcheck-stable.linux.x86_64.tar.xz
             tar xf /opt/shellcheck-stable.linux.x86_64.tar.xz -C /opt
+
       - name: Print installed ShellCheck version
         run: /opt/shellcheck-stable/shellcheck --version
+
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
+
       - name: Run ShellCheck on all files
         run: find . '(' -name '*.sh' ')' -exec /opt/shellcheck-stable/shellcheck {} +