Create databricks_groups data source

[sdreynolds]

Changes

This data source allows the terraform code to search for groups and for each one give them access to permissions and other bits.

Relates to

1. [Feature] Added "databricks_groups" data resource to list all the groups in the databricks account. #3992
2. [FEATURE] Request "databricks_groups" data resource to list all the groups in the databricks account. #3432

Tests

• make test run locally
• relevant change in docs/ folder
• covered with integration tests in internal/acceptance
• using Go SDK
• using TF Plugin Framework
• has entry in NEXT_CHANGELOG.md file

[github-actions]

If integration tests don't run automatically, an authorized user can run them manually by following the instructions below:

Trigger:
go/deco-tests-run/terraform

Inputs:

• PR number: 4864
• Commit SHA: 5aede05bd944896d7a013bcc3c66c4a2ef6e6f9a

Checks will be approved automatically on success.