[Internal] Use TEST_ENVIRONMENT_TYPE for integration test environment detection

[tanmay-db]

Summary

• Replaces ad-hoc environment variable checks (DATABRICKS_ACCOUNT_ID, TEST_METASTORE_ID, cfg.HostType()) with a single TEST_ENVIRONMENT_TYPE variable for
  determining test execution context
  • Introduces skipIfNotEnvironmentType() helper that centralizes skip logic for all four test levels: ACCOUNT, WORKSPACE, UC_ACCOUNT, UC_WORKSPACE

NO_CHANGELOG=true

Why

What changed

Interface changes

Behavioral changes

Internal changes

N/A

How is this tested?

[github-actions]

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NO_CHANGELOG=true
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Inputs:

• PR number: 1553
• Commit SHA: 45c99c50d57beaa6e9b9d222631b365107c7047e

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