fix(deps): update dependency io.reactivex.rxjava3:rxjava to v3.1.9 (#916)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

providers/go-feature-flag/pom.xml

@@ -71,7 +71,7 @@
         <dependency>
             <groupId>io.reactivex.rxjava3</groupId>
             <artifactId>rxjava</artifactId>
-            <version>3.1.8</version>
+            <version>3.1.9</version>
         </dependency>
 
         <dependency>