Run Android Build and Tests Against 8-core-ubuntu (#44248)

Summary:
The final merged GitHub Actions PR ended up keeping us on `ubuntu-latest` for Android jobs. These are ridiculously slow and are also now running out of disk space (which then files a task on a random change author). E.g. https://github.com/facebook/react-native/actions/runs/8826104037/job/24231379139

Switch to the `8-core-ubuntu`, which is closer to what we were using for CircleCI, and has more disk space: https://docs.github.com/en/actions/using-github-hosted-runners/about-larger-runners/about-larger-runners#specifications-for-general-larger-runners

Changelog:
[Internal]

Pull Request resolved: https://github.com/facebook/react-native/pull/44248

Test Plan: GitHub Actions still runs these successfully

Reviewed By: cortinico

Differential Revision: D56558697

Pulled By: NickGerleman

fbshipit-source-id: 180abcf2d3420760c090c0c21173afc6fa5bcf0c

.github/workflows/test-all.yml

@@ -85,7 +85,7 @@ jobs:
 
           echo ${{ steps.hermes-version.outputs.version }}
   build_android:
-    runs-on: ubuntu-latest
+    runs-on: 8-core-ubuntu
     needs: [set_release_type, prepare_hermes_workspace]
     container:
       image: reactnativecommunity/react-native-android:latest
@@ -134,7 +134,7 @@ jobs:
             packages/react-native-codegen/lib
           enableCrossOsArchive: true
   test_android:
-    runs-on: ubuntu-latest
+    runs-on: 8-core-ubuntu
     needs: [prepare_hermes_workspace, build_android]
     container:
       image: reactnativecommunity/react-native-android:latest