build(deps): bump the github-actions group across 1 directory with 2 updates

Bumps the github-actions group with 2 updates in the / directory: [actions/checkout](https://github.com/actions/checkout) and [actions/download-artifact](https://github.com/actions/download-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/download-artifact` from 4 to 5
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: actions/download-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.github/workflows/jekyll-build.yml

@@ -77,7 +77,7 @@ jobs:
           fi
 
       - name: Checkout theme
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: LizardByte/LizardByte.github.io
           ref: ${{ github.repository == 'LizardByte/LizardByte.github.io' && github.ref || inputs.theme_ref }}
@@ -86,7 +86,7 @@ jobs:
 
       - name: Download input artifact
         if: inputs.site_artifact != ''
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: ${{ inputs.site_artifact }}
           path: project
@@ -230,7 +230,7 @@ jobs:
     needs: build
     steps:
       - name: Checkout gh-pages
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ inputs.target_branch }}
           path: gh-pages
@@ -243,7 +243,7 @@ jobs:
         run: rm -f -r ./gh-pages/*
 
       - name: Download artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: site
           path: gh-pages