benches: bump `pprof` to v0.14 (#554) #100

Job	Run time
test (i686-unknown-linux-gnu, 1.81.0, sudo apt update && sudo apt install gcc-multilib)	58s
test (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	56s
test (x86_64-unknown-linux-gnu, 1.81.0)	18s
test (x86_64-unknown-linux-gnu, stable)	22s
minimal-versions / minimal-versions	28s
	3m 2s

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