static Resilience4jCircuitBreakerMapping perPath() {
        return builder().perPath().build();
    }
Creates a new {@link Resilience4jCircuitBreakerMapping} which maps {@link CircuitBreaker}s
with the request path.
resilience4j2/src/main/java/com/linecorp/armeria/resilience4j/circuitbreaker/client/Resilience4jCircuitBreakerMapping.java