add environment integration tests

[petrkalos]

Feature or Bugfix

Feature

Detail

• small refactor of existing test code
• add some environment queries with polling logic
• add environment fixtures with safe create and delete
• run tests in parallel
• new testdata format...

  "users": {
    "testUserTenant": {
      "username": "testUserTenant",
      "password": "...",
      "groups": [
        "DAAdministrators"
      ]
     }
  "envs": {
    "session_env1": {
      "accountId": "123",
      "region": "eu-central-1"
    }
   }
  }
  
  
  
  
  

Relates

#1230

Security

Please answer the questions below briefly where applicable, or write N/A. Based on
OWASP 10.

• Does this PR introduce or modify any input fields or queries - this includes
  fetching data from storage outside the application (e.g. a database, an S3 bucket)?
  • Is the input sanitized?
  • What precautions are you taking before deserializing the data you consume?
  • Is injection prevented by parametrizing queries?
  • Have you ensured no eval or similar functions are used?
• Does this PR introduce any functionality or component that requires authorization?
  • How have you ensured it respects the existing AuthN/AuthZ mechanisms?
  • Are you logging failed auth attempts?
• Are you using or adding any cryptographic features?
  • Do you use a standard proven implementations?
  • Are the used keys controlled by the customer? Where are they stored?
• Are you introducing any new policies/roles/users?
  • Have you used the least-privilege principle? How?

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[dlpzx]

Left some minor comments for documentation