Update AGENTS.md with Rust dependency guidelines

[KCarretto]

We need jules to run cargo fmt... it's killing me

[github-actions]

Summary

Tests 📝	Passed ✅	Failed ❌	Skipped ⏭️	Other ❓	Flaky 🍂	Duration ⏱️
2422    ±0	2422    ±0	0    ±0	0    ±0	0    ±0	0    ±0	1ms    ±0

Previous Results

Build 🏗️	Result 🧪	Tests 📝	Passed ✅	Failed ❌	Skipped ⏭️	Other ❓	Flaky 🍂	Duration ⏱️
#3243	✅	2422	2422	0	0	0	0	26.2s

Insights

Average Tests per Run	Total Flaky Tests	Total Failed	Slowest Test (p95)
2422	0	0	42.9s

Slowest Tests

Test 📝	Results 📊	Duration (avg) ⏱️	Duration (p95) ⏱️
eldritch: random::string_impl::tests::test_string_uniform	3	39.2s	42.9s
eldritch: random::string_impl::tests::test_string_uniform	3	39.2s	42.9s
eldritch: random::string_impl::tests::test_string_uniform	3	39.2s	42.9s
eldritch: process::info_impl::tests::test_info_default	3	3.1s	9.1s
eldritch: process::info_impl::tests::test_info_default	3	3.1s	9.1s
eldritch: process::info_impl::tests::test_info_default	3	3.1s	9.1s
eldritch: pivot::port_scan_impl::tests::test_portscan_return_type_starlark_dict_from_interpreter	3	3.0s	8.8s
eldritch: pivot::port_scan_impl::tests::test_portscan_return_type_starlark_dict_from_interpreter	3	3.0s	8.8s
eldritch: pivot::port_scan_impl::tests::test_portscan_return_type_starlark_dict_from_interpreter	3	3.0s	8.8s
eldritch: pivot::ssh_copy_impl::tests::test_pivot_ssh_copy	3	4.3s	8.7s

_{🎉 No failed tests in this run. | 🍂 No flaky tests in this run.}

Github Test Reporter by CTRF 💚