chore(deps): bump actions/checkout from 4 to 6 in /actions/verify-json (#644)

* chore(deps): bump actions/checkout from 4 to 6 in /actions/verify-json

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v6)

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

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

* chore: update checkout action to specific commit version

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Boris Lavrishchev <boris.lavrishchev.qubership@gmail.com>

Author: dependabot[bot]

actions/verify-json/action.yaml

@@ -23,13 +23,17 @@ runs:
   using: "composite"
   steps:
     - name: "Checkout code"
-      uses: actions/checkout@v4
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
+      with:
+        persist-credentials: false
 
     - name: "Install tools"
+      shell: bash
       run: |
         sudo apt install -y python3-jsonschema
 
     - name: "Validate"
+      shell: bash
       id: validate
       run: |
         set +e