Build: Remove 'check' task when building game-installers (#12129)

We already run './gradlew check' against merges to master
and any PR. Thus, the check as pre-requisite for building
game installers is redundant.

This update opens up a possibility that a 'check' could
fail after merging to master & we still build game
installer artifacts. In this case we will still get
notification that the main branch build has failed.
Such a situation should be rare enough that the simplicity
in not having to configure our branch tests twice, is
worth the trade-off.

.github/workflows/upload-game-installers.yml

@@ -25,8 +25,6 @@ jobs:
         with:
           distribution: temurin
           java-version: 11
-      - name: Run Build Checks
-        run: ./game-app/run/check
       - name: Build Installers
         run: ./game-app/run/package
         env: