chore(gh-actions): bump actions/checkout from 4 to 5

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci-cd-mkdocs.yml

@@ -19,7 +19,7 @@
       name: Build doc
       runs-on: ubuntu-latest
       steps:
-        - uses: actions/checkout@v4
+        - uses: actions/checkout@v5
         - name: Install Python
           uses: actions/setup-python@v5
           with:

.github/workflows/ci-cd.yml

@@ -19,7 +19,7 @@
         runs-on: ubuntu-latest
         steps:
           - name: Checkout
-            uses: actions/checkout@v4
+            uses: actions/checkout@v5
           - name: Set up Python version
             uses: actions/setup-python@v5
             with:
@@ -52,7 +52,7 @@
           id-token: write  # IMPORTANT: this permission is mandatory for trusted publishing
         steps:
           - name: Checkout
-            uses: actions/checkout@v4
+            uses: actions/checkout@v5
           - name: Set up Python version
             uses: actions/setup-python@v5
             with: