Bump micronaut-oracle-cloud to 1.0.0.RC4 (micronaut-projects#4078)

Author: micronaut-build

gradle.properties

@@ -79,7 +79,7 @@ micronautKubernetesVersion=2.0.0
 micronautServletVersion=1.0.2
 micronautJaxrsVersion=1.0.1
 protobufJavaVersion=3.13.0
-micronautOracleCloudVersion=1.0.0.RC3
+micronautOracleCloudVersion=1.0.0.RC4
 grpcVersion=1.31.1
 spotbugsVersion=4.0.3
 swaggerVersion=2.1.4