explicitly specify cloud runner cluster aws for caching tests

.github/workflows/cloud-runner-pipeline.yml

@@ -29,6 +29,8 @@ jobs:
   awsBuild:
     name: AWS Fargate Build
     if: github.event.pull_request.draft == false
+    env:
+      CLOUD_RUNNER_CLUSTER: aws
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false

src/model/cloud-runner/tests/cloud-runner-run-twice-caching.test.ts

@@ -32,7 +32,6 @@ describe('Cloud Runner', () => {
         unityVersion: UnityVersioning.determineUnityVersion('test-project', UnityVersioning.read('test-project')),
         targetPlatform: 'StandaloneLinux64',
         cacheKey: `test-case-${uuidv4()}`,
-        cloudRunnerCluster: `aws`,
       };
       const buildParameter = await CreateParameters(overrides);
       const baseImage = new ImageTag(buildParameter);