⬆️ deps: Update actions/checkout action to v7 (#44)

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

Author: renovate[bot]

.github/workflows/lint-and-fmt.yml

@@ -18,7 +18,7 @@ jobs:
     name: lint and fmt - Python ${{ matrix.python-version }} on ${{ matrix.architecture }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Install prettier
         run: |

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Install uv
         uses: astral-sh/setup-uv@v8.2.0

.github/workflows/unit-test.yml

@@ -17,7 +17,7 @@ jobs:
     name: unittest - Python ${{ matrix.python-version }} on ${{ matrix.architecture }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Install uv
         uses: astral-sh/setup-uv@v8.2.0