🌱 Bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [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] <[email protected]>

Author: dependabot[bot]

.github/workflows/documentation.yaml

@@ -15,7 +15,7 @@ jobs:
   gh-pages:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - run: make -C docs/book build
     - name: Upload artifact
       uses: actions/upload-pages-artifact@v4

.github/workflows/golangci-lint.yml

@@ -12,7 +12,7 @@ jobs:
         working-directory:
           - ""
     steps:
-      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493 # tag=v4.2.2
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # tag=v4.2.2
       - name: Calculate go version
         id: vars
         run: echo "go_version=$(make go-version)" >> $GITHUB_OUTPUT

.github/workflows/pr-dependabot.yaml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out code into the Go module directory
-      uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493 # tag=v4.1.1
+      uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # tag=v4.1.1
     - name: Calculate go version
       id: vars
       run: echo "go_version=$(make go-version)" >> $GITHUB_OUTPUT

.github/workflows/release.yaml

@@ -16,7 +16,7 @@ jobs:
       - name: Set env
         run:  echo "RELEASE_TAG=${GITHUB_REF:10}" >> $GITHUB_ENV
       - name: checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Set up Go

.github/workflows/verify.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493 # tag=v4.1.7
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # tag=v4.1.7
 
       - name: Check if PR title is valid
         env: