chore(deps): update dependency io.reactivex.rxjava3:rxjava to v3.1.4 (#193)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

gradle.properties

@@ -9,7 +9,7 @@ micronautTestVersion=3.0.5
 groovyVersion=3.0.10
 spockVersion=2.0-groovy-3.0
 
-rxJava3Version=3.1.3
+rxJava3Version=3.1.4
 
 title=Micronaut RxJava 3
 projectDesc=Integration between Micronaut and RxJava 3