[Fix] bump version vanniktech to 0.11.1

[radityagumay]

bump up version, to fix artifact issue. Please see below log.

A problem occurred configuring project ':okreplay-core'.
> Could not resolve all artifacts for configuration ':okreplay-core:classpath'.
   > Could not find com.vanniktech:gradle-maven-publish-plugin:0.9.0-SNAPSHOT.
     Searched in the following locations:
       - https://jcenter.bintray.com/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/maven-metadata.xml
       - https://jcenter.bintray.com/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/gradle-maven-publish-plugin-0.9.0-SNAPSHOT.pom
       - https://jcenter.bintray.com/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/gradle-maven-publish-plugin-0.9.0-SNAPSHOT.jar
       - file:/Users/aditya.gumay/.m2/repository/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/maven-metadata.xml
       - file:/Users/aditya.gumay/.m2/repository/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/gradle-maven-publish-plugin-0.9.0-SNAPSHOT.pom
       - file:/Users/aditya.gumay/.m2/repository/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/gradle-maven-publish-plugin-0.9.0-SNAPSHOT.jar
       - https://oss.sonatype.org/content/repositories/snapshots/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/maven-metadata.xml
       - https://oss.sonatype.org/content/repositories/snapshots/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/gradle-maven-publish-plugin-0.9.0-SNAPSHOT.pom
       - https://oss.sonatype.org/content/repositories/snapshots/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/gradle-maven-publish-plugin-0.9.0-SNAPSHOT.jar
       - https://maven.google.com/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/maven-metadata.xml
       - https://maven.google.com/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/gradle-maven-publish-plugin-0.9.0-SNAPSHOT.pom
       - https://maven.google.com/com/vanniktech/gradle-maven-publish-plugin/0.9.0-SNAPSHOT/gradle-maven-publish-plugin-0.9.0-SNAPSHOT.jar
     Required by:
         project :okreplay-core

Possible solution:
 - Declare repository providing the artifact, see the documentation at https://docs.gradle.org/current/userguide/declaring_repositories.html