Update actions

Author: Ergus

.github/workflows/cmake.yml

@@ -25,7 +25,7 @@ jobs:
         - {os: windows-latest, cc: "cl", cxx: "cl"}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Info
         run: echo ${{ github.ref }}
@@ -52,7 +52,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Configure CMake
         run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DWITH_COVERAGE=true