chore(deps): bump actions/checkout from 5 to 6 in the all group

Bumps the all group with 1 update: [actions/checkout](https://github.com/actions/checkout).


Updates `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
  dependency-group: all
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/actions-lint.yaml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout-action
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: actionlint
         uses: raven-actions/actionlint@v2

.github/workflows/files.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout-action
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: yamllint
         uses: ibiqlik/action-yamllint@v3
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout-action
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: typos-action
         uses: crate-ci/[email protected]
@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout-action
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: markdownlint-cli2-action
         uses: DavidAnson/[email protected]
@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout-action
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: editorconfig-checker-action
         uses: editorconfig-checker/action-editorconfig-checker@v2
@@ -50,7 +50,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout-action
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       # mitigate some issues with the vale-action
       - name: Install Asciidoctor