refactor(tests): replace logger mocks with caplog in trace provider tests

[melooooooo]

Summary

Part of #37468.

Replaces the remaining logger_mock = MagicMock() + monkeypatch.setattr(..., "logger", ...) patterns with pytest's caplog fixture in the trace provider tests, following the approach established in earlier PRs for this issue (e.g. #37922, #37890). These two files were found via code search after the files listed in the issue thread were already converted on main:

• api/providers/trace/trace-aliyun/tests/unit_tests/aliyun_trace/test_aliyun_trace.py: test_get_project_url_error now asserts on caplog.text instead of logger_mock.info.assert_called().
• api/providers/trace/trace-tencent/tests/unit_tests/tencent_trace/test_client.py: removed the logger MagicMock from the patch_core_components fixture; the five tests that asserted on logger.debug / logger.exception calls now assert on captured log records, checking both level and message so the assertions are strictly stronger than before.

Screenshots

N/A (test-only change)

Checklist

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran make lint && make type-check (backend) and cd web && pnpm exec vp staged (frontend) to appease the lint gods

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Pyrefly Type Coverage

Metric	Base	PR	Delta
Type coverage	52.58%	52.58%	+0.00%
Strict coverage	52.09%	52.10%	+0.00%
Typed symbols	32,521	32,523	+2
Untyped symbols	29,605	29,605	0
Modules	2981	2981	0

[melooooooo]

Marking this ready for review — all tests, style, and type checks are green.

Note on the "Validate PR title" check: the initial run failed due to a CI runner timeout (job hung for exactly 10m with no steps executed). A subsequent run of the same check passed: https://github.com/langgenius/dify/actions/runs/28951634957/job/85906573979. The stale failure entry can be ignored.