Add network upgrade config #6936

Job	Run time
Up-to-date mocks	2m 10s
Up-to-date protobuf	28s
Protobuf Lint	7s
e2e	10m 25s
e2e_existing_network	3m 37s
Fuzz	13m 6s
Up-to-date go.mod and go.sum	10s
Lint	3m 9s
Build Antithesis xsvm images	8m 18s
Image build	10m 52s
Build Antithesis avalanchego images	5m 21s
Unit (macos-12)	8m 59s
Upgrade	3m 14s
Unit (ubuntu-20.04)	6m 44s
Unit (ubuntu-22.04)	6m 41s
Unit (windows-2022)	12m 7s
Unit (custom-arm64-focal)	13m 4s
Unit (custom-arm64-jammy)	11m 35s
	2h 0m 7s

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