Bump actions/checkout from 4.3.1 to 6.0.1

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.3.1 to 6.0.1.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@34e1148...8e8c483)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/hugo.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Install Dart Sass Embedded
         run: sudo snap install dart-sass-embedded
       - name: Checkout
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v4
         with:
           submodules: recursive
       - name: Setup Pages

.github/workflows/markdown.yml

@@ -11,7 +11,7 @@ jobs:
   markdown-link-check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+    - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v4
     - name: Restore lychee cache
       uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4
       with:
@@ -27,7 +27,7 @@ jobs:
   markdown-linter:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+    - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v4
     - uses: DavidAnson/markdownlint-cli2-action@05f32210e84442804257b2a6f20b273450ec8265 # v19
       with:
         globs: "**/*.md"
@@ -36,7 +36,7 @@ jobs:
   spellcheck:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+    - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v4
     - uses: tbroadley/spellchecker-cli-action@8369e98753c0d2c3a3c76fb4519d9056d1d4b129 # v1
       with:
         # No need to use a dictionary file with the disabled spell plugin 

.github/workflows/preview.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Install Dart Sass Embedded
         run: sudo snap install dart-sass-embedded
       - name: Checkout
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v4
         with:
           submodules: recursive
       - name: Install Node.js dependencies