feat: add xcaddy-style custom binary builder #271

Job	Run time
Build & Push Operator Image	1m 51s
Build & Push Caddy Builder Image	2m 1s
Lint, Vet, Unit Tests, Build	6m 53s
Build & Push Image	1m 39s
Build & Push Caddy Image	2m 6s
Build & Push Workspace Image	37s
E2E / Kong JS Tools	1m 39s
E2E / Caddy Builder	5m 38s
E2E / Helm Chart Smoke Test	2m 42s
E2E / Gateway API E2E	2m 39s
E2E / Remote Dev Workspace	4m 11s
E2E / Kraken Market Data	1m 27s
Push Helm Chart (OCI)	6s
Integration Tests	4m 29s
Coverage Report	0s
	37m 58s

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