[BEAM-6927] Fix ./gradlew :beam-test-tools:goTest

[alanmyrvold]

Fix ./gradlew :beam-test-tools:goTest by fixing the package path in build.gradle.

R: @lostluck

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Post-Commit Tests Status (on master branch)

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

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.

[lostluck]

LGTM
If there's a JIRA we can attach to this for the related snapshot issue that would be great. @kennknowles pointed me to the issue, so he may have a suggestion.

To be clear about what's happening here: gogradle uses the package path for building and testing and managing the cleanup state. GoGradle uses that to configure what to unit test in the goTest dependency. The path given didn't exist, but the replacement does, allowing the dependency to pass properly.

It may be possible to reduce/clean up the cancelStaleDataflowJobs task since goGradle should be handling the vendoring properly now, but that's reasonable to defer until I learn how to work with GoGradle properly and see if it needs excising.

[alanmyrvold]

Kenn was not aware of a Jira, and I could not find one when searching. Filed https://issues.apache.org/jira/browse/BEAM-6927

[lostluck]

R: @kennknowles Please merge! Thanks!

[apilloud]

LGTM.