tests

Update installation instructions for Linux #2240

Job	Run time
test_indentation	32s
coverage	2m 55s
test_linux_and_macos_mpi (ubuntu-24.04, Release)	2m 13s
linux-clang_flang_mpi (ubuntu-24.04, Debug)	2m 14s
test_linux_and_macos_mpi (macos-12, Release)	1s
test_linux_and_macos (ubuntu-22.04, Release)	1m 37s
linux-gdb-valgrind (ubuntu-22.04, Debug)	2m 14s
test_linux_and_macos (ubuntu-22.04, Debug)	1m 39s
test_linux_and_macos_mpi (macos-13, Release)	2m 12s
test_linux_non_unity_no_optional_dependencies (ubuntu-24.04, Debug)	2m 1s
test_linux_and_macos (ubuntu-24.04, Release)	1m 41s
test_linux_and_macos (ubuntu-24.04, Debug)	1m 40s
test_windows (windows-2022, Release, Visual Studio 17 2022)	15s
test_linux_and_macos (macos-12, Release)	1s
test_windows (windows-2022, Debug, Visual Studio 17 2022)	12s
test_linux_and_macos (macos-12, Debug)	1s
test_linux_and_macos (macos-13, Release)	2m 14s
test_linux_and_macos (macos-13, Debug)	2m 9s
linux-clang_gfortran_mpi	1s
linux-cmake_mpi	1s
linux-gcc_mpi	1s
linux-gcc_no_apps	1s
	25m 55s

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