fix(tests): add wait for environment creation function to prevent flaky tests []

[luizfonseca]

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Summary

• adds waitForEnvironmentToBeReady to most tests that are using createEnvironment

Description

Motivation and Context

Checklist (check all before merging)

• [ ] Both unit and integration tests are passing
• [ ] There are no breaking changes
• [ ] Changes are reflected in the documentation

When adding a new method:

• [ ] The new method is exported through the default and plain CMA client
• [ ] All new public types are exported from ./lib/export-types.ts
• [ ] Added a unit test for the new method
• [ ] Added an integration test for the new method
• [ ] The new method is added to the documentation

[Spring3]

@luizfonseca could you try using the next major test utils package? Maybe it will fix it?

[Spring3]

@luizfonseca should we close it? looks like there's not time to follow up?