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

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

Author: renovate[bot]

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.3.0
 
       # - name: "Set Python Version ${{ matrix.python-version }}"
       #   run: echo '${{ matrix.python-version }}' > .python-version

.github/workflows/docs.yml

@@ -13,7 +13,7 @@ jobs:
       working-directory: ./docs
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.3.0
 
       - name: Install uv
         uses: astral-sh/setup-uv@v6

.github/workflows/release-please.yml

@@ -24,7 +24,7 @@ jobs:
           manifest-file: .github/release-please-manifest.json
 
       - name: Checkout code
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.3.0
         if: ${{ steps.release.outputs.release_created }}
 
       - name: Install uv