perf: increase repo cache TTL — 5min for data, 30min for detect #182

Job	Run time
Secret Scan (gitleaks)	6s
Server Unit Tests	32s
Unit Tests (Node 20)	1m 50s
Typecheck	33s
Unit Tests (Node 22)	1m 55s
Lint	14s
Server DB Integration Tests	28s
Web Tests	27s
E2E Tests	0s
Coverage Report	0s
Repo Provider Integration Tests	0s
Docker Build & Push	0s
Publish to npm	0s
	6m 5s

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