Update version after 2.4.1 release (#192)

* Release v2.4.1

* Next development version (v2.4.2-SNAPSHOT)

Co-authored-by: Spring <[email protected]>

Author: pivotal-david-osullivan

gradle.properties

@@ -1,6 +1,6 @@
 org.gradle.parallel=true
 
 group=io.pivotal.cfenv
-version=2.4.1-SNAPSHOT
+version=2.4.2-SNAPSHOT
 onlyShowStandardStreamsOnTestFailure=false