chore(deps): update plugin io.specmatic.gradle to v0.14.15 (#204)

Author: specmatic-builder

gradle.properties

@@ -2,4 +2,4 @@ version=0.14.16-SNAPSHOT
 group=io.specmatic.gradle
 org.gradle.kotlin.dsl.allWarningsAsErrors=true
 # this is the version of the plugin to be used when building the plugin.
-specmaticGradlePluginVersion=0.14.14
+specmaticGradlePluginVersion=0.14.15