chore(deps): update actions/checkout action to v4.3.0

Author: renovate[bot]

.github/workflows/lint.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.3.0
 
       - name: Setup Flutter
         uses: subosito/flutter-action@v2

.github/workflows/publish.yml

@@ -21,7 +21,7 @@ jobs:
       name: ${{ steps.package.outputs.name }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.3.0
 
       - name: Get package name
         id: package