[Bug]: ItFramework PipelineUtils createJobName and extractJobName not align

[Abacn]

What happened?

extractJobName is intended to inverse createJobName which append a timestamp and some random chars from the input job name. However, in the latest release validation it is found the reported pipeline name and labels (which relies on extractJobName) is not correct.

https://github.com/apache/beam/blob/master/it/common/src/test/java/org/apache/beam/it/common/utils/PipelineUtilsTest.java has tests on testCreateExtractJobName() without random character, but not the case with random character. Likely some later change on the API has broken this alignment.

Issue Priority

Priority: 2 (default / most bugs should be filed as P2)

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