Update CODEOWNERS and stabilize fusion workspace-group drop test

[kesmit13]

Summary

• Replace @srinathnarayanan with @mgiannakopoulos, @volodymyr-memsql, and @pmishchenko-ua in CODEOWNERS.
• Stabilize test_create_drop_workspace_group by polling the workspace-groups list until the dropped group is gone or marked terminated, instead of asserting immediately after WAIT ON TERMINATED (the list endpoint can lag behind the per-resource endpoint).

Test plan

• CI runs pytest singlestoredb/tests/test_fusion.py::TestWorkspaceFusion::test_create_drop_workspace_group and it passes consistently.
• Confirm CODEOWNERS changes route reviews to the new owners on a follow-up PR.

🤖 Generated with Claude Code

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Note

Low Risk
Only CODEOWNERS routing and fusion integration-test timing/assertions change; no production library or API behavior.

Overview
Updates CODEOWNERS so the default owner line is a single entry: @kesmit13 stays, @srinathnarayanan is removed, and @mgiannakopoulos, @volodymyr-memsql, and @pmishchenko-ua are added.

test_create_drop_workspace_group is adjusted for eventual consistency between WAIT ON TERMINATED (per-group API) and mgr.workspace_groups (list API). A new _wait_workspace_group_gone helper polls for up to 60s until the group is missing from the list or every matching row has terminated_at set. Post-drop checks use that helper instead of asserting an empty list immediately; post-create checks only count groups with terminated_at is None so stale terminated rows do not break assertions.

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[Copilot]

Pull request overview

This PR updates repository review routing via CODEOWNERS and reduces flakiness in the Fusion workspace-group drop test by adding polling to account for eventual consistency in the workspace-groups list API.

Changes:

• Adjust CODEOWNERS entries to reflect new default owners.
• Stabilize test_create_drop_workspace_group by polling until the dropped group disappears from the list endpoint or is marked terminated.
• Add a small test helper (_wait_workspace_group_gone) to encapsulate the polling logic.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
singlestoredb/tests/test_fusion.py	Adds polling helper and uses it after workspace-group drops to avoid list-endpoint lag flakiness.
CODEOWNERS	Updates default owners list (currently with a precedence issue that needs correction).

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