Reactor 3.5.4 and RxJava3 3.1.6

Author: rmichela

pom.xml

@@ -76,8 +76,8 @@
  <jprotoc.version>1.2.2</jprotoc.version>
 
  <rxjava.version>2.2.21</rxjava.version>
- <reactor.version>3.4.7</reactor.version>
- <rx3java.version>3.1.1</rx3java.version>
+ <reactor.version>3.5.4</reactor.version>
+ <rx3java.version>3.1.6</rx3java.version>
 
  <!-- Test Dependency Versions -->
  <grpc.contrib.version>0.8.1</grpc.contrib.version>