Bump actions/checkout from 2 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...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>

Author: dependabot[bot]

.github/workflows/Deploy-PR.yml

@@ -8,7 +8,7 @@ jobs:
       contents: write
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v6
       with:
         persist-credentials: false
     # NOTE: Python is necessary for the pre-rendering (minification) step

.github/workflows/Deploy.yml

@@ -11,7 +11,7 @@ jobs:
       contents: write
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v6
       with:
         persist-credentials: false
     # NOTE: Python is necessary for the pre-rendering (minification) step