Update flaky-monitor workflow for persistent reporting

[google-labs-jules]

Updates .github/workflows/tests.yml to set artifact-name: 'flaky-report' in the flaky-monitor job, enabling cross-run persistence and access to main branch history for flaky test analysis.

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PR created automatically by Jules for task 13529823322067346059 started by @KCarretto

[google-labs-jules]

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[github-actions]

Summary

Tests 📝	Passed ✅	Failed ❌	Skipped ⏭️	Other ❓	Flaky 🍂	Duration ⏱️
2422    ±0	2422    ±0	0    ±0	0    ±0	0    ±0	0    ±0	25.6s    ↓729ms

Previous Results

Build 🏗️	Result 🧪	Tests 📝	Passed ✅	Failed ❌	Skipped ⏭️	Other ❓	Flaky 🍂	Duration ⏱️
#3246	✅	2422	2422	0	0	0	0	25.6s
#3241	✅	2422	2422	0	0	0	0	26.3s

Insights

Average Tests per Run	Total Flaky Tests	Total Failed	Slowest Test (p95)
2422	0	0	44.4s

Slowest Tests

Test 📝	Results 📊	Duration (avg) ⏱️	Duration (p95) ⏱️
eldritch: random::string_impl::tests::test_string_uniform	6	39.5s	44.4s
eldritch: random::string_impl::tests::test_string_uniform	6	39.5s	44.4s
eldritch: random::string_impl::tests::test_string_uniform	6	39.5s	44.4s
eldritch: pivot::port_scan_impl::tests::test_portscan_return_type_starlark_dict_from_interpreter	6	2.0s	9.4s
eldritch: pivot::port_scan_impl::tests::test_portscan_return_type_starlark_dict_from_interpreter	6	2.0s	9.4s
eldritch: pivot::port_scan_impl::tests::test_portscan_return_type_starlark_dict_from_interpreter	6	2.0s	9.4s
eldritch: pivot::ssh_copy_impl::tests::test_pivot_ssh_copy	6	3.3s	9.3s
eldritch: pivot::ssh_copy_impl::tests::test_pivot_ssh_copy	6	3.3s	9.3s
eldritch: pivot::ssh_copy_impl::tests::test_pivot_ssh_copy	6	3.3s	9.3s
eldritch: pivot::ssh_exec_impl::tests::test_pivot_ssh_exec	6	3.2s	9.3s

_{🎉 No failed tests detected across all runs. | 🍂 No flaky tests detected across all runs. | ⏱️ Measured over 2 runs.}

Github Test Reporter by CTRF 💚

🔄 This comment has been updated