build(deps): bump actions/download-artifact from 4 to 8

Bumps [actions/download-artifact](https://github.com/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/download-artifact
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/bindings.yml

@@ -62,7 +62,7 @@ jobs:
 
       - name: Download native library
         if: steps.has.outputs.ok == 'true'
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: librustwright_capi-linux
           path: target/release
@@ -159,7 +159,7 @@ jobs:
     steps:
       - uses: actions/checkout@v7.0.1
       - name: Download all language results
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           pattern: results-*
           path: results