Merge pull request #257 from mapbox/rl/ios_flaky_tests_3_attemps

Attempt flaky tests 3 times on iOS

Author: evil159

.circleci/config.yml

@@ -141,7 +141,9 @@ jobs:
           command: |
             gcloud firebase test ios run \
               --test << parameters.workspace-path >>/build_products.zip \
-              --device model=iphone8,version=15.7
+              --device model=iphone8,version=15.7 \
+              --timeout 5m \
+              --num-flaky-test-attempts 3