[CI] Bump actions/upload-artifact from 2 to 3 (#9214)

- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v2...v3)

.github/workflows/build.yml

@@ -34,7 +34,7 @@ jobs:
           ./kodev release macos
 
       - name: Uploading artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: koreader-macos
           path: '*.7z'