Bump actions/checkout from 5 to 7

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
     name: Types, lint, unit tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: actions/setup-node@v5
         with:
           node-version: ${{ env.NODE_VERSION }}
@@ -52,7 +52,7 @@ jobs:
           --health-timeout 5s
           --health-retries 10
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: actions/setup-node@v5
         with:
           node-version: ${{ env.NODE_VERSION }}
@@ -78,7 +78,7 @@ jobs:
           --health-timeout 5s
           --health-retries 10
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: actions/setup-node@v5
         with:
           node-version: ${{ env.NODE_VERSION }}
@@ -102,7 +102,7 @@ jobs:
     name: Docker image builds
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: docker/setup-buildx-action@v3
       - uses: docker/build-push-action@v6
         with: