bump org.json:json version to latest

Previous versions of org.json:json have a non-free license. Updating to
latest fixes this and makes using pact-jvm easier in corporate environments.

Fixes #1620

gradle.properties

@@ -10,7 +10,7 @@ scalaTestVersion=3.1.2
 slf4jVersion=1.7.32
 logbackVersion=1.2.5
 junitVersion=4.13.2
-jsonVersion=20210307
+jsonVersion=20220924
 nettyVersion=4.1.66.Final
 mavenPluginPluginVersion=3.5
 guavaVersion=30.1.1-jre