circuit breaker interceptor accessibility fix (#72)

Author: Gg-harness

grpc-circuitbreaker-utils/src/main/java/org/hypertrace/circuitbreaker/grpcutils/CircuitBreakerInterceptorFactory.java

@@ -9,7 +9,7 @@
 public class CircuitBreakerInterceptorFactory {
   private final Clock clock;
 
-  CircuitBreakerInterceptor buildInterceptor(CircuitBreakerConfiguration<?> configuration) {
+  public CircuitBreakerInterceptor buildInterceptor(CircuitBreakerConfiguration<?> configuration) {
     return ResilienceCircuitBreakerFactory.getCircuitBreakerInterceptor(configuration, clock);
   }
 }