Add Auxiliary Command Server to Proto (#1121) #5374

Job	Run time
Unit Tests	2m 16s
Unit tests with race condition detection	2m 48s
Lint	4m 36s
Build Unsigned Snapshot	2m 9s
Performance Tests	7m 5s
Integration Tests - Official Plus Images (debian, bookworm, r31, debian, /nginx-plus/agent)	7m 54s
Integration Tests - Official Plus Images (alpine, 3.19, r31, alpine, /nginx-plus/agent)	7m 43s
Integration Tests (ubuntu, 24.04)	9m 8s
Load Tests	4m 45s
Integration Tests - Official Plus Images (alpine, 3.20, r32, alpine, /nginx-plus/agent)	7m 24s
Integration Tests (redhatenterprise, 9)	8m 59s
Integration Tests - Official OSS Images (alpine, mainline, alpine)	7m 17s
Integration Tests (alpine, 3.22)	7m 11s
Integration Tests - Official OSS Images (bookworm, stable, debian)	7m 58s
Integration Tests - Official OSS Images (bookworm, mainline, debian)	7m 46s
Integration Tests - Official OSS Images (alpine, stable, alpine)	7m 18s
Integration Tests - Official Plus Images (debian, bookworm, r32, debian, /nginx-plus/agent)	7m 49s
	1h 50m 6s

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