Cannot run jest tests with --maxWorkers=50% option via @nrwl/jest:jest builder

[wrslatz]

The @nrwl/jest builder should support both number and string inputs for maxWorkers config option. Passing --maxWorkers=50% to ng test or nx affected:test fails with schema validation, but the Jest CLI Options documentation specify that both a number and string are acceptable arguments.

Expected Behavior

Both ng test -- --maxWorkers=50% and nx affected:test -- --maxWorkers=50% run tests and do not throw schema validation errors.

Current Behavior

Both ng test -- --maxWorkers=50% and nx affected:test -- --maxWorkers=50% result in the following error:

Cannot parse arguments. See below for the reasons.
    Argument --maxWorkers could not be parsed using value "50%".Valid type(s) is: number

Failure Information (for bugs)

Please help provide information about the failure if this is a bug. If it is not a bug, please remove the rest of this template.

Steps to Reproduce

1. npx create-nx-workspace@latest
2. Choose a workspace that has tests out of the gate (I chose Angular)
3. Run any test using "builder": "@nrwl/jest:jest" and pass -- --maxWorkers=50% flag to the command.

Context

The schema that is now out of date

nx/packages/jest/src/builders/jest/schema.json

Lines 56 to 59 in 54d06f0

	"maxWorkers": {
	"alias": "w",
	"description": "Specifies the maximum number of workers the worker-pool will spawn for running tests. This defaults to the number of the cores available on your machine. Useful for CI. (its usually best not to override this default) (https://jestjs.io/docs/en/cli#maxworkers-num)",
	"type": "number"

The original PR that implemented this functionality
#757

The latest jest docs for this functionality
https://jestjs.io/docs/en/cli#--maxworkersnumstring

Minimal reproduction repo
https://github.com/wrslatz/nx-playground/tree/e836200fe7484c6ac022066d13d534f5eb95808b

[FrozenPandaz]

Thanks for reporting this!

Looks like the type of the option needs to be number | string

This would be a good first issue.

[wrslatz]

I'd be happy to submit a PR for review!

[wrslatz]

I've submitted #3025 to close this issue. Would appreciate a review whenever it's convenient!

[github-actions]

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