chore(lazygit): add fzf script for long commit #50

Job	Run time
check (aarch64-linux, ubuntu-24.04-arm)	41s
check (x86_64-linux, ubuntu-24.04)	32s
switch (aarch64-linux, ubuntu-24.04-arm)	3m 17s
switch (x86_64-linux, ubuntu-24.04)	2m 42s
	7m 12s

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