chore(deps): bump actions/checkout from 5 to 6 (#241)

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build-cache.yml

@@ -9,7 +9,7 @@ jobs:
     name: Build Lint and Format Cache
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup Python
         uses: actions/setup-python@v6
         id: setup_python
@@ -33,7 +33,7 @@ jobs:
     name: Build PyTest Cache
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup Python
         uses: actions/setup-python@v6
         id: setup_python

.github/workflows/update-generated-schema.yml

@@ -17,7 +17,7 @@ jobs:
         uses: pozetroninc/github-action-get-latest-release@master
         with:
           repository: netbox-community/netbox
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         if: ${{ steps.netbox-release.outputs.release != vars.SCHEMA_VERSION }}
       - name: Setup Python
         uses: actions/setup-python@v6

.github/workflows/validation.yml

@@ -8,7 +8,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup Python
         uses: actions/setup-python@v6
         id: setup_python
@@ -35,7 +35,7 @@ jobs:
   format:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup Python
         uses: actions/setup-python@v6
         id: setup_python
@@ -66,7 +66,7 @@ jobs:
       contents: read
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup Python
         uses: actions/setup-python@v6
         id: setup_python