fix(jest): avoid haste module naming collision

[caugner]

Summary

Problem

Running yarn test:kumascript causes the following warnings:

jest-haste-map: Haste module naming collision: @yari-internal/constants
  The following files share their name; please adjust your hasteImpl:
    * <rootDir>/libs/constants/package.json
    * <rootDir>/cloud-function/src/internal/constants/package.json

jest-haste-map: Haste module naming collision: @yari-internal/env
  The following files share their name; please adjust your hasteImpl:
    * <rootDir>/libs/env/package.json
    * <rootDir>/cloud-function/src/internal/env/package.json

jest-haste-map: Haste module naming collision: @yari-internal/fundamental-redirects
  The following files share their name; please adjust your hasteImpl:
    * <rootDir>/libs/fundamental-redirects/package.json
    * <rootDir>/cloud-function/src/internal/fundamental-redirects/package.json

jest-haste-map: Haste module naming collision: @yari-internal/languages
  The following files share their name; please adjust your hasteImpl:
    * <rootDir>/libs/languages/package.json
    * <rootDir>/cloud-function/src/internal/languages/package.json

jest-haste-map: Haste module naming collision: @yari-internal/locale-utils
  The following files share their name; please adjust your hasteImpl:
    * <rootDir>/libs/locale-utils/package.json
    * <rootDir>/cloud-function/src/internal/locale-utils/package.json

jest-haste-map: Haste module naming collision: @yari-internal/slug-utils
  The following files share their name; please adjust your hasteImpl:
    * <rootDir>/libs/slug-utils/package.json
    * <rootDir>/cloud-function/src/internal/slug-utils/package.json

jest-haste-map: Haste module naming collision: @yari-internal/types
  The following files share their name; please adjust your hasteImpl:
    * <rootDir>/libs/types/package.json
    * <rootDir>/cloud-function/src/internal/types/package.json

jest-haste-map: Haste module naming collision: @yari-internal/pong
  The following files share their name; please adjust your hasteImpl:
    * <rootDir>/libs/pong/package.json
    * <rootDir>/cloud-function/src/internal/pong/package.json

Solution

Scope yarn test:kumascript to the kumascript folder with the (undocumented) --rootDir option (which we have already been using for yarn test:testing).

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How did you test this change?

✅ The warnings no longer appear in the workflow run in this PR.

[fiji-flo]

💯