Update dining-philosophers.rs #3550

Job	Run time
find-languages	5s
format	24s
bare-metal (src/bare-metal/alloc-example, aarch64-unknown-none)	40s
cargo (ubuntu-latest)	47s
bare-metal (src/bare-metal/aps/examples, aarch64-unknown-none)	43s
cargo (macos-latest)	44s
bare-metal (src/bare-metal/microcontrollers/examples, thumbv7em-none-eabihf)	1m 14s
bare-metal (src/exercises/bare-metal/compass, thumbv7em-none-eabihf)	1m 15s
bare-metal (src/exercises/bare-metal/rtc, aarch64-unknown-none)	40s
build (bn)	2m 57s
build (da)	2m 32s
build (de)	1m 56s
build (el)	2m 1s
build (en)	2m 57s
build (es)	2m 47s
build (fa)	3m 42s
build (fr)	2m 39s
build (id)	2m 50s
build (it)	2m 25s
build (ja)	1m 55s
build (ko)	2m 49s
build (pl)	2m 11s
build (pt-BR)	2m 52s
build (ru)	3m 1s
build (tr)	3m 18s
build (uk)	3m 8s
build (zh-CN)	2m 43s
build (zh-TW)	1m 59s
	57m 14s

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