Update actions

| datasource  | package          | from   | to |
| ----------- | ---------------- | ------ | -- |
| github-tags | actions/checkout | v6.0.3 | v7 |

Author: renovate[bot]

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
   check:
     runs-on: ubuntu-slim
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
       - uses: biomejs/setup-biome@4c91541eaada48f67d7dbd7833600ce162b68f51 # v2.7.1
       - run: biome ci
       - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
@@ -32,7 +32,7 @@ jobs:
     needs: check
     runs-on: ubuntu-slim
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
       - uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
       - run: git clone --depth 1 --branch headless https://github.com/wagtail/bakerydemo.git bakerydemo
       - run: uv venv