linux

Switch to supported ubuntu image #7937

Job	Run time
build (g++-4.9, Debug, 11)	24s
build (g++-4.9, Release, 11)	19s
build (g++-11, Debug, 11)	1m 25s
build (g++-11, Release, 11)	1m 4s
build (clang++-11, Debug, 11)	1m 36s
build (clang++-11, Release, 11)	2m 3s
build (g++-11, Debug, 14, sudo apt install g++-11)	1m 36s
build (g++-11, Debug, 17)	1m 27s
build (g++-11, Debug, 20, sudo apt install g++-11)	1m 6s
build (clang++-11, Debug, 17, -stdlib=libc++, sudo apt install clang-11 libc++-11-dev libc++abi-1...	2m 4s
build (clang++-11, Debug, 17, -DFMT_FUZZ=ON -DFMT_FUZZ_LINKMAIN=ON, sudo apt install clang-11)	2m 7s
build (g++-13, Release, 23, -DBUILD_SHARED_LIBS=ON, sudo apt install g++-13)	42s
	15m 53s

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