Update dependency io.reactivex.rxjava3:rxjava to v3.1.2

Author: renovate-bot

rxjava-tutorial/pom.xml

@@ -40,7 +40,7 @@
 		<dependency>
 			<groupId>io.reactivex.rxjava3</groupId>
 			<artifactId>rxjava</artifactId>
-			<version>3.1.1</version>
+			<version>3.1.2</version>
 		</dependency>
 
 		<dependency>