Resolve itest runbundles for Gson and Commons Lang upgrades and fix JsonParser deprecations (#10345)

* Resolve itest runbundles for Gson and Commons Lang upgrades
* Fix JsonParser deprecations too
* Fix feature verification

Signed-off-by: Wouter Born <github@maindrain.net>

itests/org.openhab.binding.ntp.tests/itest.bndrun

@@ -18,7 +18,6 @@ Fragment-Host: org.openhab.binding.ntp
 -runbundles: \
 	ch.qos.logback.classic;version='[1.2.3,1.2.4)',\
 	ch.qos.logback.core;version='[1.2.3,1.2.4)',\
-	com.google.gson;version='[2.8.2,2.8.3)',\
 	javax.measure.unit-api;version='[1.0.0,1.0.1)',\
 	org.apache.commons.commons-net;version='[3.7.2,3.7.3)',\
 	org.apache.felix.configadmin;version='[1.9.8,1.9.9)',\
@@ -62,4 +61,5 @@ Fragment-Host: org.openhab.binding.ntp
 	org.mockito.mockito-core;version='[3.7.0,3.7.1)',\
 	org.objenesis;version='[3.1.0,3.1.1)',\
 	org.glassfish.hk2.osgi-resource-locator;version='[1.0.3,1.0.4)',\
-	biz.aQute.tester.junit-platform;version='[5.3.0,5.3.1)'
+	biz.aQute.tester.junit-platform;version='[5.3.0,5.3.1)',\
+	com.google.gson;version='[2.8.6,2.8.7)'