chore(deps): update actions/checkout action to v5

Author: Renovatebot

.github/workflows/build.yaml

@@ -20,7 +20,7 @@ jobs:
       run:
         working-directory: src
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-dotnet@v4
         with:
           dotnet-version: 8.x