update swagger-core to v2.1.6

Author: bnasslahsen

pom.xml

@@ -66,7 +66,7 @@
 		<maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
 		<maven-release-plugin.version>2.5.3</maven-release-plugin.version>
 		<nexus-staging-maven-plugin>1.6.8</nexus-staging-maven-plugin>
-		<swagger-api.version>2.1.5</swagger-api.version>
+		<swagger-api.version>2.1.6</swagger-api.version>
 		<swagger-ui.version>3.37.2</swagger-ui.version>
 		<spring-security-oauth2.version>2.3.8.RELEASE</spring-security-oauth2.version>
 		<classgraph.version>4.8.69</classgraph.version>