fix: general improvements in tm2/bft/consensus #3233

Job	Run time
build (1.21.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	11s
test (1.21.x, _test.flappy)	21s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/goscan)	6s
test (1.21.x, _test.pkg.amino)	1m 19s
test (1.21.x, _test.pkg.bft)	21m 14s
build (1.21.x, amd64, linux, ./pkg/autofile/cmd)	6s
test (1.21.x, _test.pkg.others)	1m 10s
test (1.22.x, _test.flappy)	20s
build (1.21.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	7s
test (1.22.x, _test.pkg.amino)	1m 27s
build (1.22.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	10s
test (1.22.x, _test.pkg.bft)	2m 19s
build (1.22.x, amd64, linux, ./pkg/amino/cmd/goscan)	8s
test (1.22.x, _test.pkg.others)	1m 13s
build (1.22.x, amd64, linux, ./pkg/autofile/cmd)	7s
build (1.22.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	7s
upload-coverage	0s
	30m 25s

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