[AI] Update Dependency - github.com/golang-jwt/jwt

[google-labs-jules]

Updated github.com/golang-jwt/jwt from v3.2.2+incompatible to v5.3.0.
This update addresses potential security vulnerabilities associated with the older v3 version and brings the codebase up to date with the latest JWT implementation.

Module	Package	Old Version	New Version	Status
tavern	github.com/golang-jwt/jwt	v3.2.2+incompatible	v5.3.0	Build Passed / Fixed Breaking Change

Transitive dependency updates were handled by go mod tidy.
Breaking changes in jwt-go v5 were addressed:

• Replaced StandardClaims with RegisteredClaims.
• Updated Id to ID.
• Updated SigningMethodEd25519 usages to SigningMethodEdDSA (while maintaining *SigningMethodEd25519 check where appropriate).
• Updated time handling to use jwt.NewNumericDate.

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PR created automatically by Jules for task 3539928021299056520 started by @KCarretto

[google-labs-jules]

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[github-actions]

Summary

Tests 📝	Passed ✅	Failed ❌	Skipped ⏭️	Other ❓	Flaky 🍂	Duration ⏱️
3101    ±0	3101    ±0	0    ±0	0    ±0	0    ±0	0    ±0	1ms    ±0

Previous Results

Build 🏗️	Result 🧪	Tests 📝	Passed ✅	Failed ❌	Skipped ⏭️	Other ❓	Flaky 🍂	Duration ⏱️
#589	✅	3101	3101	0	0	0	0	30.3s

Insights

Average Tests per Run	Total Flaky Tests	Total Failed	Slowest Test (p95)
3101	0	0	9.3s

Slowest Tests

Test 📝	Results 📊	Duration (avg) ⏱️	Duration (p95) ⏱️
eldritch: process::info_impl::tests::test_info_default	3	3.3s	9.3s
eldritch: process::info_impl::tests::test_info_default	3	3.3s	9.3s
eldritch: process::info_impl::tests::test_info_default	3	3.3s	9.3s
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	8.8s
eldritch: pivot::ssh_copy_impl::tests::test_pivot_ssh_copy	3	4.3s	8.8s
eldritch: pivot::ssh_copy_impl::tests::test_pivot_ssh_copy	3	4.3s	8.8s
eldritch: pivot::ssh_exec_impl::tests::test_pivot_ssh_exec	3	4.3s	8.7s

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

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