ci: update github actions versions

Author: davops

.github/workflows/sample-app-docker-build.yml

@@ -9,8 +9,8 @@ jobs:
         version: [6, 7, 8]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-dotnet@v3
+      - uses: actions/checkout@v5
+      - uses: actions/setup-dotnet@v4
         with:
             dotnet-version: ${{ matrix.version }}.x
       - run: dotnet tool install -g Amazon.Lambda.Tools