Unblock run_fantom_tests by pinning react-native-android to v18.0 (#53732)

Summary:
This temporarly unblocks `run_fantom_tests` till we find a solution for the docker image bump. See:
- react-native-community/docker-android#242 (comment)

## Changelog:

[INTERNAL] -

Pull Request resolved: #53732

Test Plan: CI

Reviewed By: cipolleschi

Differential Revision: D82212022

Pulled By: cortinico

fbshipit-source-id: 652926addf12cc2d88ac2139d3ec58a266ced9ef

Author: cortinico

.github/workflows/test-all.yml

@@ -382,7 +382,8 @@ jobs:
     runs-on: 8-core-ubuntu
     needs: [set_release_type]
     container:
-      image: reactnativecommunity/react-native-android:latest
+      # Version is pinned to v18.0 to unblock `run_fantom_tests` - see https://github.com/react-native-community/docker-android/pull/242#issuecomment-3280029122
+      image: reactnativecommunity/react-native-android:v18.0
       env:
         TERM: "dumb"
         GRADLE_OPTS: "-Dorg.gradle.daemon=false"