Bump one CI config to ubuntu-24.04 #395

Job	Run time
build (Debug, yes, 3.12, yes, ubuntu-22.04, gcc)	3m 24s
build (Debug, yes, 3.10, yes, ubuntu-22.04, gcc)	3m 56s
build (Release, 3.13, yes, gmpxx, no, ubuntu-22.04, gcc)	4m 47s
build (Debug, yes, 3.9, yes, ubuntu-22.04, gcc)	3m 26s
build (Debug, yes, 3.11, yes, ubuntu-22.04, gcc)	3m 30s
build (Release, 3.9, yes, ubuntu-22.04, gcc)	4m 35s
build (Release, yes, 3.13, ubuntu-22.04, gcc)	4m 26s
build (Release, 3.13, yes, ubuntu-22.04, gcc)	4m 27s
build (Release, 3.13, yes, ubuntu-22.04, gcc)	4m 36s
build (Release, 3.13, yes, ubuntu-22.04, clang)	4m 8s
build (Debug, 3.13, yes, yes, ubuntu-22.04, clang)	3m 39s
build (Release, 3.11, ubuntu-22.04, yes, yes, yes, yes, yes, yes, flint, yes, gcc)	4m 37s
build (Release, 3.13, macos-13, gcc)	9m 50s
build (Debug, 3.12, yes, 18, yes, yes, boostmp, -k "not integer_nthroot", ubuntu-24.04, gcc, llvm...	5m 34s
build (Release, 3.9, no, macos-13, clang)	7m 52s
build (Debug, 3.13, no, macos-13, gcc)	5m 16s
build (Release, 3.9, yes, flint, yes, ubuntu-22.04, gcc)	4m 33s
build (Debug, 3.13, yes, 5, macos-13, clang)	9m 11s
	1h 31m 47s

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