Tests

Make `bls.Signer` api fallible #10769

Job	Run time
Fuzz	15m 7s
Unit (macos-14)	7m 41s
e2e	13m 13s
Unit (ubuntu-20.04)	7m 25s
Unit (ubuntu-22.04)	7m 45s
e2e_existing_network	5m 27s
Unit (ubuntu-24.04)	7m 19s
Protobuf Lint	7s
Unit (windows-2022)	13m 59s
Unit (custom-arm64-jammy)	13m 25s
Up-to-date protobuf	26s
Unit (custom-arm64-noble)	13m 35s
Lint	4m 17s
Upgrade	3m 28s
Up-to-date mocks	2m 45s
Build Antithesis avalanchego images	9m 43s
Up-to-date go.mod and go.sum	23s
Image build	10m 54s
Run bootstrap monitor e2e tests	6m 24s
Build Antithesis xsvm images	12m 44s
	2h 36m 7s

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