Add Load Tests ParDo Dataflow Batch Go workflow

[Amar3tto]

The following jenkins job has been migrated:

https://ci-beam.apache.org/job/beam_LoadTests_Go_ParDo_Dataflow_Batch
https://ci-beam.apache.org/job/beam_LoadTests_Go_ParDo_Dataflow_Batch_PR

How has it been tested?

The job has been tested on Self-hosted GKE runners ubuntu 20.04.
The following test cases are passed:

• by adding a comment to the PR

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[Abacn]

there are lots of common options - I think we need a load test builder that setup common options, like currently Jenkins counterpart has.

[Amar3tto]

Done