Bump the all-actions group across 1 directory with 3 updates

Bumps the all-actions group with 3 updates in the / directory: [actions/checkout](https://github.com/actions/checkout), [actions/upload-artifact](https://github.com/actions/upload-artifact) and [actions/upload-pages-artifact](https://github.com/actions/upload-pages-artifact).


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

Updates `actions/upload-artifact` from 4 to 5
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v5)

Updates `actions/upload-pages-artifact` from 3.0.1 to 4.0.0
- [Release notes](https://github.com/actions/upload-pages-artifact/releases)
- [Commits](actions/upload-pages-artifact@v3.0.1...v4.0.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: all-actions
- dependency-name: actions/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: all-actions
- dependency-name: actions/upload-pages-artifact
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: all-actions
...

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

Author: dependabot[bot]

.github/workflows/build.yaml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
     - name: Checkout RFC
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Install dependencies
       run: sudo apt update && sudo apt install -y make python3-pip libxml2-dev libxslt1-dev libyaml-dev
     - name: Install pipenv
@@ -20,12 +20,12 @@ jobs:
     - name: build txt
       run: pipenv run make openvpn-wire-protocol.txt
     - name: Archive html artifact
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       with:
         name: openvpn-wire-protocol.html
         path: openvpn-wire-protocol.html
     - name: Archive txt artifact
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       with:
         name: openvpn-wire-protocol.txt
         path: openvpn-wire-protocol.txt
@@ -39,7 +39,7 @@ jobs:
     - name: Upload static files as artifact
       id: deployment
       if: ${{ github.event_name != 'pull_request' && github.ref == 'refs/heads/master' }}
-      uses: actions/upload-pages-artifact@v3.0.1
+      uses: actions/upload-pages-artifact@v4.0.0
       with:
         path: pages/