chore(deps): 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)
- [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>

Author: dependabot[bot]

.github/workflows/codequality.yml

@@ -10,7 +10,7 @@ jobs:
     name: "🧪 Lint & Test Packages"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install pnpm
         uses: pnpm/action-setup@v4
       - name: Setup Node.js

.github/workflows/pr-name-validator.yml

@@ -15,7 +15,7 @@ jobs:
     if: ${{ github.actor != 'dependabot[bot]' }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Checkout current PR
         run: gh pr checkout $GITHUB_HEAD_REF
 

.github/workflows/publish-extension.yml

@@ -11,7 +11,7 @@ jobs:
       run:
         working-directory: packages/extension
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install pnpm
         uses: pnpm/action-setup@v4
       - name: "Setup Node.js"

.github/workflows/publish-lib.yml

@@ -12,7 +12,7 @@ jobs:
       run:
         working-directory: packages/septic
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install pnpm
         uses: pnpm/action-setup@v4
       - name: "Setup Node.js"

.github/workflows/update-septic-docs-pr.yml

@@ -10,7 +10,7 @@ jobs:
     name: "📚 Update PR"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Setup Python
         uses: actions/setup-python@v6