Bump actions/checkout from 6 to 6.0.2

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 6.0.2.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v6.0.2)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v6.0.2
     - uses: actions/setup-node@v6
       with:
         node-version: ${{ matrix.node-version }}
@@ -40,7 +40,7 @@ jobs:
       run:
         working-directory: e2e/client
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v6.0.2
     - uses: actions/setup-node@v6
       with:
         node-version: ${{ matrix.node-version }}
@@ -100,7 +100,7 @@ jobs:
       run:
         working-directory: e2e/client
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v6.0.2
     - uses: actions/setup-node@v6
       with:
         node-version: '22'