Performance optimisation: Reuse workspace between discovery and execution tasks

[saurabh-prakash]

Description

Performance optimisation: Reused workspace between discovery and execution tasks. Previously, we used to run the preRun commands again in execution mode of nucleus. With this change, execute tasks start using the workspace already set up by discover task.

Fixes # (issue)
Reduces the preRun setup latency contribution by half.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

This has been tested locally with an express webhook. Observed that all tests ran successfully and test-execution phase continued on the workspace created by test-discovery phase

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules