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**Related issue:** Resolves#38538
This PR is just refactoring GitHub workflows. No significant functional
differences.
In this PR, we create a reusable workflow for running a single Go test
suite. This eliminates/reduces the complex and hard to maintain strategy
matrix from the original job.
This is pre-work before splitting off activity bounded context tests
into their own job.
Victor Lyuboslavsky
6dd1848d6b