fix: add user to all users group on user creation

[sabhas]

Issue

closes #336

Checks

• [ ] Code is formatted correctly (npm run lint:fix).
• [ ] Any new functionality has been unit tested.
• [ ] All unit tests are passing (npm test).
• [ ] All CI checks are green.
• [ ] Reviewer is assigned.

[sasjsbot]

:tada: This PR is included in version 0.28.7 :tada:

The release is available on:

• GitHub release
• v0.28.7

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