chore: add additional testcases for fswap (#1415) #4463

Job	Run time
test-cosmovisor	2m 31s
install-tparse	12s
build (amd64, gcc)	1m 2s
build (arm64, aarch64-linux-gnu-gcc, g++-aarch64-linux-gnu)	1m 20s
cleanup-runs	0s
split-test-files	17s
tests (00)	3m 26s
tests (01)	4m 42s
test-race (00)	3m 41s
tests (02)	4m 44s
tests (03)	3m 31s
test-race (01)	3m 8s
test-race (02)	1m 49s
test-race (03)	2m 12s
upload-coverage-report	34s
	33m 9s

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