Add v2 to v3 upgrade tests #5749

Job	Run time
Build unsigned snapshot	4m 17s
Component Tests	1m 13s
Build signed snapshot	6m 53s
Performance Tests	7m 20s
Build Grafana Dashboard Example	1m 41s
Unit Tests	4m 10s
Lint	53s
Integration Tests - Official OSS Images (bookworm, mainline, debian)	3m 26s
Integration Tests - Official OSS Images (alpine, stable, alpine)	3m 32s
Integration Tests - Official Plus Images (debian, bookworm, r31, debian, /nginx-plus/agent)	3m 47s
Integration Tests - Official OSS Images (bookworm, stable, debian)	3m 40s
Integration Tests - Official Plus Images (debian, bookworm, r32, debian, /nginx-plus/agent)	3m 53s
Integration Tests - Official OSS Images (alpine, mainline, alpine)	3m 21s
Integration Tests - Official Plus Images (alpine, 3.19, r31, alpine, /nginx-plus/agent)	3m 42s
Integration Tests (rockylinux, 9)	4m 23s
Integration Tests (almalinux, 8)	4m 48s
Integration Tests (rockylinux, 8)	4m 53s
Integration Tests (amazonlinux, 2023)	2m 8s
Integration Tests (almalinux, 9)	4m 32s
Integration Tests (amazonlinux, 2)	5m 29s
Integration Tests (oraclelinux, 9)	5m 7s
Integration Tests (alpine, 3.19)	3m 47s
Integration Tests (alpine, 3.22)	3m 49s
Integration Tests (alpine, 3.21)	3m 43s
Integration Tests (debian, bookworm-slim)	4m 9s
Integration Tests (debian, bullseye-slim)	4m 32s
Integration Tests (ubuntu, 24.04)	4m 2s
Integration Tests (alpine, 3.20)	3m 46s
Integration Tests (oraclelinux, 8)	5m 48s
Integration Tests - Official Plus Images (alpine, 3.20, r32, alpine, /nginx-plus/agent)	3m 35s
trigger-release-workflow	0s
	2h 0m 19s

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