[Fix] Forced send `auto_stop_mins` for `databricks_sql_endpoint` resource

[nkvuong]

Changes

• Forced send auto_stop_mins for databricks_sql_endpoint resource. This allows creating SQL warehouses with auto stop turned off

Tests

• [x] make test run locally
• [x] relevant acceptance tests are passing
• [x] using Go SDK

[github-actions[bot]]

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: 4265
• Commit SHA: 29ca35f0de1a7bf0bdccffc56922a7d4dafa8d7d

Checks will be approved automatically on success.

[eng-dev-ecosystem-bot]

Test Details: go/deco-tests/11968811114