fix(ci): scope minimize-reviews concurrency by event name

[strawgate]

A single review action fires two events at the same instant — pull_request_review (submitted) and pull_request_review_comment (created). Because the minimize-resolved-reviews concurrency group was keyed only on PR number, both sibling runs landed in the same group with cancel-in-progress: true and cancelled each other. Usually one survives, but under a burst both siblings can end cancelled, leaving a commit with no successful run of this workflow at all (observed on #4060's codex/keycloak-fix branch — e.g. runs 2767 and 2768 for the same SHA both cancelled).

Appending github.event_name to the concurrency group keeps the two sibling event types in separate groups so they no longer cancel each other. Same-PR runs of the same event still supersede cleanly, and the last run of each type always completes.

group: minimize-reviews-${{ github.event.pull_request.number || github.event.issue.number }}-${{ github.event_name }}

🤖 Generated with Claude Code

[claude]

Claude Code Review

This pull request is from a fork — automated review is disabled. A repository maintainer can comment @claude review to run a one-time review.

[strawgate]

@claude review

[marvin-context-protocol]

tl;dr: CI failure is a pre-existing Windows-only flake in tests/server/auth/providers/test_azure_scopes.py::TestAzureOBOIntegration::test_get_obo_credential_returns_configured_credential — unrelated to this PR's workflow-file change. Safe to re-run.

Root cause: The test timed out at the 5s thread-timeout while inside with patch("azure.identity.aio.OnBehalfOfCredential", ...). The traceback ends in Python's import machinery (_dot_lookup → __import__ → find_spec → _path_join), i.e. the mock.patch import resolution for azure.identity.aio got stuck during module discovery on the Windows runner. This is environmental (slow Windows file I/O during import), not caused by anything in this PR. The PR diff touches exactly one file — .github/workflows/minimize-resolved-reviews.yml — to scope the concurrency group by github.event_name. No Python source or test code was changed.

Fix: Re-run the Tests: Python 3.10 on windows-latest job. If the same test hangs again on retry, that's a separate flake worth opening an issue for (the test does with patch(\"azure.identity.aio.OnBehalfOfCredential\", ...) at tests/server/auth/providers/test_azure_scopes.py:617, which forces a real import of azure.identity.aio under a 5s timeout — vulnerable to slow Windows imports).

Log excerpt

```
File "D:\a\fastmcp\fastmcp\tests\server\auth\providers\test_azure_scopes.py", line 617, in test_get_obo_credential_returns_configured_credential
with patch(
File "...\unittest\mock.py", line 1431, in enter
self.target = self.getter()
File "...\unittest\mock.py", line 1261, in _importer
thing = _dot_lookup(thing, comp, import_path)
File "...\unittest\mock.py", line 1250, in _dot_lookup
import(import_path)
File "", line 1562, in find_spec
File "", line 104, in _path_join
+++++++++++++++++++++++++++++++++++ Timeout +++++++++++++++++++++++++++++++++++
##[error]Process completed with exit code 1.
```

All other jobs in run 26002021291 (ubuntu 3.10/3.13, lowest-direct deps, MCP conformance, integration, smoke) passed.

PR diff (for context)

```diff

• group: minimize-reviews-${{ github.event.pull_request.number || github.event.issue.number }}

• group: minimize-reviews-${{ github.event.pull_request.number || github.event.issue.number }}-${{ github.event_name }}
  ```

Workflow-only change; cannot affect Python unit tests.