stretch timeout for reference tests to 40m in circleci

Signed-off-by: garyschulte <garyschulte@gmail.com>

.circleci/config.yml

@@ -204,7 +204,7 @@ jobs:
           at: ~/project
       - run:
           name: ReferenceTests
-          no_output_timeout: 30m
+          no_output_timeout: 40m
           command: |
             git submodule update --init --recursive
             ./gradlew --no-daemon referenceTest