[BEAM-7926] Update dependencies in Java Katas
[BEAM-7926] Update dependencies in Java Katas

Updates:

Gradle: 4.8 -> 5.0 (and fix deprecated build-in task overwritten
declaration)

org.apache.beam:beam-sdks-java-core: 2.13.0 -> 2.16.0
org.apache.beam:beam-runners-direct-java: 2.13.0 -> 2.16.0
com.google.guava:guava: 27.1-jre -> 28.1-jre
joda-time:joda-time: 2.10.3 -> 2.10.4
org.slf4j:slf4j-api: 1.7.26 -> 1.7.28
org.apache.logging.log4j:log4j-slf4j-impl: 2.11.2 -> 2.12.1

org.assertj:assertj-core: 3.12.2 -> 3.13.2
org.hamcrest:hamcrest-core: 1.3 -> 2.1
org.hamcrest:hamcrest-library: 1.3 -> 2.1

apache/beam,RyanSkraba/beam,robertwb/incubator-beam,chamikaramj/beam,RyanSkraba/beam,chamikaramj/beam,lukecwik/incubator-beam,chamikaramj/beam,robertwb/incubator-beam,robertwb/incubator-beam,lukecwik/incubator-beam,robertwb/incubator-beam,apache/beam,chamikaramj/beam,RyanSkraba/beam,lukecwik/incubator-beam,chamikaramj/beam,apache/beam,lukecwik/incubator-beam,apache/beam,apache/beam,apache/beam,iemejia/incubator-beam,RyanSkraba/beam,robertwb/incubator-beam,robertwb/incubator-beam,chamikaramj/beam,chamikaramj/beam,iemejia/incubator-beam,RyanSkraba/beam,robertwb/incubator-beam,lukecwik/incubator-beam,robertwb/incubator-beam,apache/beam,lukecwik/incubator-beam,chamikaramj/beam,chamikaramj/beam,robertwb/incubator-beam,lukecwik/incubator-beam,robertwb/incubator-beam,apache/beam,apache/beam,lukecwik/incubator-beam,RyanSkraba/beam,RyanSkraba/beam,apache/beam,lukecwik/incubator-beam,chamikaramj/beam,lukecwik/incubator-beam,apache/beam