build(deps): Bump the dependencies group across 1 directory with 4 updates

Bumps the dependencies group with 4 updates in the /.github/workflows directory: [actions/checkout](https://github.com/actions/checkout), [DavidAnson/markdownlint-cli2-action](https://github.com/davidanson/markdownlint-cli2-action), [actions/cache](https://github.com/actions/cache) and [lycheeverse/lychee-action](https://github.com/lycheeverse/lychee-action).


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)

Updates `DavidAnson/markdownlint-cli2-action` from 20.0.0 to 22.0.0
- [Release notes](https://github.com/davidanson/markdownlint-cli2-action/releases)
- [Commits](DavidAnson/markdownlint-cli2-action@v20.0.0...v22.0.0)

Updates `actions/cache` from 4 to 5
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v4...v5)

Updates `lycheeverse/lychee-action` from 2.6.1 to 2.7.0
- [Release notes](https://github.com/lycheeverse/lychee-action/releases)
- [Commits](lycheeverse/lychee-action@v2.6.1...v2.7.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dependencies
- dependency-name: DavidAnson/markdownlint-cli2-action
  dependency-version: 22.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dependencies
- dependency-name: actions/cache
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dependencies
- dependency-name: lycheeverse/lychee-action
  dependency-version: 2.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependencies
...

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

Author: dependabot[bot]

.github/workflows/auto-review.yaml

@@ -34,7 +34,7 @@ jobs:
 
         steps:
             -   name: "Checkout"
-                uses: "actions/checkout@v5"
+                uses: "actions/checkout@v6"
 
             -   name: "Setup PHP"
                 uses: "shivammathur/setup-php@v2"

.github/workflows/docs.yaml

@@ -15,10 +15,10 @@ jobs:
         timeout-minutes: 1
         steps:
             -   name: "Checkout repository"
-                uses: "actions/checkout@v5"
+                uses: "actions/checkout@v6"
 
             -   name: "Check Markdown formatting"
-                uses: "DavidAnson/markdownlint-cli2-action@v20.0.0"
+                uses: "DavidAnson/markdownlint-cli2-action@v22.0.0"
                 with:
                     globs: "*.md|docs/**/*.md"
 
@@ -28,17 +28,17 @@ jobs:
         timeout-minutes: 1
         steps:
             -   name: "Checkout repository"
-                uses: "actions/checkout@v5"
+                uses: "actions/checkout@v6"
 
             -   name: "Restore lychee cache"
-                uses: "actions/cache@v4"
+                uses: "actions/cache@v5"
                 with:
                     path: ".lycheecache"
                     key: "cache-lychee-${{ github.sha }}"
                     restore-keys: cache-lychee-
 
             -   name: "Run Lychee"
-                uses: "lycheeverse/lychee-action@v2.6.1"
+                uses: "lycheeverse/lychee-action@v2.7.0"
                 with:
                     # To keep in sync with Makefile#lychee
                     args: "--verbose --no-progress '*.md' 'docs/**/*.md' --cache --max-cache-age 1d ."

.github/workflows/tests.yaml

@@ -21,7 +21,7 @@ jobs:
 
         steps:
             -   name: "Check out repository code"
-                uses: "actions/checkout@v5"
+                uses: "actions/checkout@v6"
 
             -   name: "Setup PHP"
                 uses: "shivammathur/setup-php@v2"
@@ -55,7 +55,7 @@ jobs:
 
         steps:
             -   name: "Check out repository code"
-                uses: "actions/checkout@v5"
+                uses: "actions/checkout@v6"
 
             -   name: "Setup PHP"
                 uses: "shivammathur/setup-php@v2"
@@ -85,7 +85,7 @@ jobs:
 
         steps:
             -   name: "Check out repository code"
-                uses: "actions/checkout@v5"
+                uses: "actions/checkout@v6"
 
             -   name: "Setup PHP"
                 uses: "shivammathur/setup-php@v2"