Test

Reduce vertical space slightly in UART examples #6953

Job	Run time
format	37s
find-languages	4s
cargo (ubuntu-latest)	37s
cargo (macos-latest)	42s
bare-metal (src/bare-metal/alloc-example, aarch64-unknown-none)	1m 45s
bare-metal (src/bare-metal/aps/examples, aarch64-unknown-none)	28s
Translation diff	3m 34s
typos	4s
bare-metal (src/bare-metal/microcontrollers/examples, thumbv7em-none-eabihf)	1m 13s
bare-metal (src/exercises/bare-metal/compass, thumbv7em-none-eabihf)	44s
bare-metal (src/exercises/bare-metal/rtc, aarch64-unknown-none)	51s
build (ar)	6m 50s
build (bn)	8m 6s
build (da)	7m 32s
build (de)	12m 42s
build (el)	6m 58s
build (en)	6m 17s
build (es)	6m 46s
build (fa)	10m 51s
build (fr)	6m 47s
build (id)	7m 19s
build (it)	7m 20s
build (ja)	8m 53s
build (ko)	8m 48s
build (pl)	7m 18s
build (pt-BR)	7m 18s
build (ro)	7m 33s
build (ru)	7m 5s
build (tr)	6m 35s
build (uk)	6m 56s
build (vi)	7m 26s
build (zh-CN)	9m 7s
build (zh-TW)	8m 39s
	3h 3m 45s

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