Merge a37e0bc into 9364dc3

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -67,7 +67,7 @@ reactiveStreams = "1.0.4"
 robolectric = "4.12"            # Do not use >4.12 as it breaks the build
 runner = "1.0.2"
 rxandroid = "2.0.2"
-rxjava = "2.1.14"
+rxjava = "2.2.21"
 serialization = "1.7.3"
 slf4jNop = "2.0.17"
 spotless = "7.0.4"