chore(deps): update actions/checkout action to v6 (#110)

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

Author: renovate[bot]

.github/workflows/python.yml

@@ -33,7 +33,7 @@ jobs:
 
     steps:
       - uses: astral-sh/setup-uv@v7
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Set up Python ${{ matrix.python-version }}

.github/workflows/schema.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - uses: astral-sh/setup-uv@v7
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.head.ref }}
 

.github/workflows/syntax.yml

@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Syntax Test