Update to actions/checkout v4

Author: Mab879

.github/workflows/gating.yml

@@ -14,7 +14,7 @@ jobs:
             -   name: Install Dependencies
                 run: dnf install -y ruby rubygem-bundler ruby-devel libffi libffi-devel @"Development Tools" gcc-c++
             -   name: Checkout
-                uses: actions/checkout@v3
+                uses: actions/checkout@v4
             -   name: Install Ruby Dependencies
                 run: bundle install -j2
             -   name: Build