fix: webmagic-scripts/pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-ORGJETBRAINSKOTLIN-2628385

Author: snyk-bot

webmagic-scripts/pom.xml

@@ -9,7 +9,7 @@
 
     <artifactId>webmagic-scripts</artifactId>
     <properties>
-        <kotlin.version>1.1.2-2</kotlin.version>
+        <kotlin.version>1.6.0</kotlin.version>
     </properties>
 
     <dependencies>