Update to checkout@v4

.github/workflows/dart.yml

@@ -23,7 +23,7 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
         dart-sdk: [stable, beta, dev]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Dart ${{ matrix.dart-sdk }}
         uses: dart-lang/setup-dart@v1
         with:

.github/workflows/dotnet.yml

@@ -25,7 +25,7 @@ jobs:
         dotnet-version: ["6.0.x"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Setup .NET ${{ matrix.dotnet-version }}
       uses: actions/setup-dotnet@v3

.github/workflows/python.yml

@@ -24,9 +24,9 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
         python-version: ["3.8", "3.10"]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies