Update actions/checkout action to v4 (#3423)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/GenerateAsyncCode.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         ref: ${{ github.event.pull_request.head.ref }}
         repository: ${{ github.event.pull_request.head.repo.full_name }}

.github/workflows/NetCoreTests.yml

@@ -47,7 +47,7 @@ jobs:
     steps:
     - name: Set up ${{matrix.DB}}
       run: ${{matrix.DB_INIT}}
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Setup .NET
       uses: actions/setup-dotnet@v3
       with: