chore(amino): improve error readability #1689

Job	Run time
build (1.20.x, GOARCH=amd64 GOOS=linux, gno)	24s
test (1.20.x, _test.cmd)	1m 14s
build (1.20.x, GOARCH=wasm GOOS=js, gno)	39s
test (1.20.x, _test.pkg)	58s
build (1.21.x, GOARCH=amd64 GOOS=linux, gno)	32s
test (1.20.x, _test.gnolang.native)	28s
build (1.21.x, GOARCH=wasm GOOS=js, gno)	42s
test (1.20.x, _test.gnolang.stdlibs)	1m 27s
test (1.20.x, _test.gnolang.realm)	42s
test (1.20.x, _test.gnolang.pkg0)	2m 37s
test (1.20.x, _test.gnolang.pkg1)	7m 54s
test (1.20.x, _test.gnolang.pkg2)	6m 28s
test (1.20.x, _test.gnolang.other)	26s
test (1.21.x, _test.cmd)	1m 0s
test (1.21.x, _test.pkg)	1m 16s
test (1.21.x, _test.gnolang.native)	36s
test (1.21.x, _test.gnolang.stdlibs)	1m 23s
test (1.21.x, _test.gnolang.realm)	40s
test (1.21.x, _test.gnolang.pkg0)	2m 26s
test (1.21.x, _test.gnolang.pkg1)	7m 43s
test (1.21.x, _test.gnolang.pkg2)	5m 23s
test (1.21.x, _test.gnolang.other)	39s
	45m 37s

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