Bump the major group with 2 updates

Bumps the major group with 2 updates: [actions/setup-python](https://github.com/actions/setup-python) and [actions/checkout](https://github.com/actions/checkout).


Updates `actions/setup-python` from 4 to 6
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v4...v6)

Updates `actions/checkout` from 3 to 6
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v6)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: major
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: major
...

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

Author: dependabot[bot]

.github/workflows/gha-secret-extract.yaml

@@ -17,7 +17,7 @@ jobs:
       GITHUB_SECRET_SOURCE: ${{ github.secret_source }}
     steps:
       - name: Set up Python 3.x
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
 

.github/workflows/semgrep.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - run: /usr/bin/jq --version
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - run: |