Test

Create install-mdbook.sh and lock to the current versions used in the… #7019

Job	Run time
cargo (ubuntu-latest)	39s
find-languages	3s
cargo (macos-latest)	34s
format	44s
Translation diff	2m 31s
typos	6s
bare-metal (src/bare-metal/alloc-example, aarch64-unknown-none)	43s
bare-metal (src/bare-metal/aps/examples, aarch64-unknown-none)	1m 12s
bare-metal (src/bare-metal/microcontrollers/examples, thumbv7em-none-eabihf)	52s
bare-metal (src/exercises/bare-metal/compass, thumbv7em-none-eabihf)	54s
bare-metal (src/exercises/bare-metal/rtc, aarch64-unknown-none)	38s
build (ar)	5m 54s
build (bn)	5m 52s
build (da)	5m 55s
build (de)	6m 28s
build (el)	6m 13s
build (en)	5m 11s
build (es)	6m 15s
build (fa)	4m 38s
build (fr)	6m 10s
build (id)	5m 53s
build (it)	5m 44s
build (ja)	7m 22s
build (ko)	6m 34s
build (pl)	5m 32s
build (pt-BR)	6m 28s
build (ro)	6m 17s
build (ru)	6m 15s
build (tr)	6m 9s
build (uk)	5m 53s
build (vi)	6m 15s
build (zh-CN)	7m 23s
build (zh-TW)	7m 0s
	2h 24m 17s

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