Fixes failing docker issue (#733)

Signed-off-by: Gagan Juneja <gjjuneja@amazon.com>
Co-authored-by: Gagan Juneja <gjjuneja@amazon.com>
(cherry picked from commit ca521d5)

.github/workflows/gradle.yml

@@ -31,7 +31,7 @@ jobs:
  # Explicitly set the docker-compose program path so that our build scripts in RCA can run the program
  # This is necessary because of the Github Actions environment and the workingDir of the Gradle environment
  - name: Set docker-compose path
- run: DOCKER_COMPOSE_LOCATION=$(which docker-compose)
+ run: echo "DOCKER_COMPOSE_LOCATION=$(which docker-compose)" >> $GITHUB_ENV
  # Set the vm.max_map_count system property to the minimum required to run OpenSearch
  - name: Set vm.max_map_count
  run: sudo sysctl -w vm.max_map_count=262144