retries: enable retry budget for concurrent retries (#774)
retries: enable retry budget for concurrent retries (#774)

Description: previously the cluster configuration for circuit breakers was not specified. This meant that Envoy Mobile was using the default of 3 concurrent retries. This is not appropriate, specially because all* active traffic goes through the same cluster. This PR changes the configuration and explicitly sets the retry_budget configuration.
Risk Level: low (more retries will actually be allowed)
Testing: local

Signed-off-by: Jose Nino <ca94e32c82b10963d0ce6eadf427a615ff7d1c0b@lyft.com>
envoyproxy/envoy-mobile,envoyproxy/envoy-mobile,envoyproxy/envoy-mobile,envoyproxy/envoy-mobile,envoyproxy/envoy-mobile,envoyproxy/envoy-mobile,envoyproxy/envoy-mobile,envoyproxy/envoy-mobile,envoyproxy/envoy-mobile