[ci] Simplify tmpnet monitoring action #11024

Job	Run time
Up-to-date mocks	2m 32s
e2e	14m 36s
Up-to-date protobuf	24s
Protobuf Lint	7s
Run bootstrap monitor e2e tests	6m 43s
e2e_existing_network	5m 28s
Fuzz	14m 46s
Up-to-date go.mod and go.sum	11s
Lint	3m 39s
Build Antithesis avalanchego images	9m 7s
Build Antithesis xsvm images	12m 6s
Image build	12m 34s
Upgrade	3m 40s
Unit (macos-14)	5m 4s
Unit (ubuntu-20.04)	3m 57s
Unit (ubuntu-22.04)	3m 29s
Unit (ubuntu-24.04)	6m 52s
Unit (windows-2022)	12m 32s
Unit (custom-arm64-jammy)	6m 59s
Unit (custom-arm64-noble)	7m 24s
	2h 12m 10s

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