Port the `install` tests to the test DSL with a new `CHECKSUM` command #1623

Job	Run time
docker	7m 9s
snap (ubuntu-24.04-arm)	9m 45s
snap (ubuntu-24.04)	11m 31s
codespell	16s
test (macos-15, native, clang, clang++, sh)	7m 4s
test (windows-2022, native, pwsh)	9m 22s
npm	18s
test (ubuntu-22.04, native, gcc-14, g++-14, sh)	9m 13s
test (windows-2022, wsl-2, gcc-14, g++-14, wsl-bash {0})	46m 47s
test (ubuntu-22.04-arm, container, alpine:3.21, --device /dev/fuse --cap-add SYS_ADMIN --security...	10m 28s
test (ubuntu-latest, container, alpine:3.21, --device /dev/fuse --cap-add SYS_ADMIN --security-op...	14m 49s
test (ubuntu-22.04-arm, native, gcc-14, g++-14, sh)	8m 19s
test (macos-15-intel, native, clang, clang++, sh)	10m 16s
	2h 25m 17s

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