build(deps): bump actions/download-artifact from 3 to 4

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/mobile-perf.yml

@@ -79,11 +79,11 @@ jobs:
       image: ${{ needs.env.outputs.build_image_ubuntu }}
     steps:
     - uses: actions/checkout@v3
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4
       with:
         name: sizecurrent
         path: dist/sizecurrent
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4
       with:
         name: sizemain
         path: dist/sizemain

.github/workflows/mobile_release.yml

@@ -65,7 +65,7 @@ jobs:
         fetch-depth: 0
     - name: Add safe directory
       run: git config --global --add safe.directory /__w/envoy/envoy
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4
       with:
         name: envoy_android_aar_sources
         path: .