make version override possible

src/main/java/de/flapdoodle/embed/mongo/spring/autoconfigure/EmbeddedMongoAutoConfiguration.java

@@ -117,6 +117,7 @@ public MongodWrapper reactiveClientServerWrapper(
 	}
 
 	@Bean
+	@ConditionalOnMissingBean
 	public IFeatureAwareVersion version(EmbeddedMongoProperties embeddedProperties) {
 		return determineVersion("de.flapdoodle", embeddedProperties.getVersion());
 	}