[dependabot] Chore: 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] <support@github.com>

Author: dependabot[bot]

.github/workflows/bootstrap.yaml

@@ -19,10 +19,10 @@ jobs:
 
     steps:
       - name: "Checkout primary repository"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: "Pull devops content from repository"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: "os-climate/devops-toolkit"
           path: ".devops"

.github/workflows/security.yaml

@@ -34,7 +34,7 @@ jobs:
 
     steps:
       - name: "Checkout repository"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5