Update actions/checkout action to v7

| datasource  | package          | from   | to     |
| ----------- | ---------------- | ------ | ------ |
| github-tags | actions/checkout | v6.0.3 | v7.0.0 |


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

Author: renovate[bot]

.github/workflows/continuous-integration.yml

@@ -16,7 +16,7 @@ jobs:
       matrix: ${{ steps.matrix.outputs.matrix }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: '0'
       - name: Gather CI configuration
@@ -32,7 +32,7 @@ jobs:
       matrix: ${{ fromJSON(needs.matrix.outputs.matrix) }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: ${{ matrix.name }}
         uses: laminas/laminas-continuous-integration-action@v1
         env: