[BEAM-7926] Update dependencies in Java Katas

[leonardoam]

Update several Java Katas dependencies.

Specially, upgrade Gradle from 4.8 to 5.0 and fix deprecated declaration.

    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

R: @henryken @reuvenlax

---

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Post-Commit Tests Status (on master branch)

Lang	SDK	Apex	Dataflow	Flink	Gearpump	Samza	Spark
Go		---	---		---	---
Java
Python		---			---	---
XLang	---	---	---		---	---	---

Pre-Commit Tests Status (on master branch)

---	Java	Python	Go	Website
Non-portable
Portable	---		---	---

See .test-infra/jenkins/README for trigger phrase, status and link of all Jenkins jobs.

[pabloem]

Hi @leonardoam ! Thanks for the PR. Have to tested that this combination of dependencies works?

[leonardoam]

HI @pabloem, I've ran tests and nothing broke.
I also took a look at release notes for major changes and nothing seems to be a reason to break.
If you suspect of anything please let me know.

[pabloem]

Alright. LGTM. I'll just ping @henryken once more, and merge in a couple days if he doesn't answer.

[henryken]

LGTM. I had a quick test and nothing breaks.

[pabloem]

Thanks for the review @henryken
and thanks a lot for the PR @leonardoam !

[aaltay]

Was there a typo in the JIRA (https://issues.apache.org/jira/browse/BEAM-7926) mentioned in the title? JIRA does not appear to be related to this PR.