ci: Bump the github-actions group with 2 updates (#4)

Bumps the github-actions group with 2 updates: [actions/upload-artifact](https://github.com/actions/upload-artifact) and [actions/download-artifact](https://github.com/actions/download-artifact).


Updates `actions/upload-artifact` from 4 to 7
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v7)

Updates `actions/download-artifact` from 4 to 8
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4...v8)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: actions/download-artifact
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -56,7 +56,7 @@ jobs:
 
       - name: Upload coverage report
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: coverage-json
           path: coverage.json

.github/workflows/release.yml

@@ -158,7 +158,7 @@ jobs:
             HEAD
 
       - name: Upload source packages
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: source-packages
           path: |
@@ -290,15 +290,15 @@ jobs:
 
       - name: Upload Unix module package
         if: ${{ runner.os != 'Windows' }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: tinydocs-module-${{ matrix.id }}
           path: ${{ steps.unix_package.outputs.archive }}
           if-no-files-found: error
 
       - name: Upload Windows module package
         if: ${{ runner.os == 'Windows' }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: tinydocs-module-${{ matrix.id }}
           path: ${{ steps.windows_package.outputs.archive }}
@@ -318,7 +318,7 @@ jobs:
           submodules: true
 
       - name: Download workflow artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           pattern: tinydocs-module-*
           path: release-assets