Fix test autoconfiguration

Signed-off-by: Dave Syer <david.syer@broadcom.com>

Author: dsyer

spring-grpc-test-spring-boot-autoconfigure/src/main/java/org/springframework/boot/grpc/test/autoconfigure/InProcessTransportContextCustomizerFactory.java

@@ -61,7 +61,7 @@ private static class InProcessTransportContextCustomizer implements ContextCusto
 		public void customizeContext(ConfigurableApplicationContext context,
 				MergedContextConfiguration mergedContextConfiguration) {
 			if (this.annotation == null
-					|| !context.getEnvironment().getProperty(ENABLED_PROPERTY, Boolean.class, false)) {
+					|| !context.getEnvironment().getProperty(ENABLED_PROPERTY, Boolean.class, true)) {
 				return;
 			}
 			TestPropertyValues