tm2

refactor!: remove `gno build` command (#1297) #1567

Job	Run time
build (1.20.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	7s
build (1.20.x, amd64, linux, ./pkg/amino/cmd/goscan)	5s
build (1.20.x, amd64, linux, ./pkg/autofile/cmd)	9s
build (1.20.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	9s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	12s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/goscan)	4s
build (1.21.x, amd64, linux, ./pkg/autofile/cmd)	11s
build (1.21.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	9s
test (1.20.x, _test.flappy)	38s
test (1.20.x, _test.pkg.amino)	1m 49s
test (1.20.x, _test.pkg.bft)	21m 12s
test (1.20.x, _test.pkg.others)	2m 40s
test (1.21.x, _test.flappy)	28s
test (1.21.x, _test.pkg.amino)	1m 29s
test (1.21.x, _test.pkg.bft)	2m 26s
test (1.21.x, _test.pkg.others)	2m 35s
upload-coverage	0s
	34m 23s

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