github: Update actions so they don't use deprecated Node.js 20

.github/workflows/windows.yml

@@ -38,8 +38,8 @@ jobs:
       OS_NAME: linux
       TEST: ${{ matrix.test }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: ~/.cache/ccache
           key: ccache-${{ runner.os }}-${{ matrix.test }}-${{ github.sha }}
@@ -52,7 +52,7 @@ jobs:
       - uses: ./.github/actions/default
       - run: ccache -s
       - if: ${{ failure() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: Logs ${{ github.job }}
           path: config.log