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

Author: renovate[bot]

.github/workflows/lint.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
         - name: "Checkout the repository"
-          uses: "actions/checkout@v4.2.2"
+          uses: "actions/checkout@v4.3.0"
 
         - name: "Set up Python"
           uses: actions/setup-python@v5.6.0

.github/workflows/validate.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
         - name: "Checkout the repository"
-          uses: "actions/checkout@v4.2.2"
+          uses: "actions/checkout@v4.3.0"
 
         - name: "Run hassfest validation"
           uses: "home-assistant/actions/hassfest@master"
@@ -27,7 +27,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
         - name: "Checkout the repository"
-          uses: "actions/checkout@v4.2.2"
+          uses: "actions/checkout@v4.3.0"
 
         - name: "Run HACS validation"
           uses: "hacs/action@main"