enable bazel gpu rbe tests

Author: nitins17

.github/workflows/bazel_gpu_rbe.yml

@@ -1,9 +1,9 @@
 name: Run Bazel GPU tests using RBE
 
-# on:
-#   pull_request:
-#     branches:
-#       - main
+on:
+  pull_request:
+    branches:
+      - main
 
 jobs:
   build:
@@ -26,6 +26,4 @@ jobs:
       - name: Wait For Connection
         uses: ./actions/ci_connection/
       - name: Run Bazel GPU tests using RBE
-        env:
-          ENV_FILE: ci/envs/run_tests/bazel_gpu_rbe
-        run: ./ci/run_bazel_test.sh
+        run: ./ci/run_bazel_test.sh "ci/envs/run_tests/bazel_gpu_rbe"