Update the cross-armhf builder to Ubuntu 24.04 #2688

Job	Run time
armhf Linux glibc	27m 24s
armhf Linux glibc	27m 24s
aarch64 Linux glibc	23m 22s
aarch64 Linux glibc	23m 22s
arm64 Apple Darwin	17m 5s
arm64 Apple Darwin	17m 5s
arm Linux glibc	27m 41s
arm Linux glibc	27m 41s
Lint bash, docker, markdown, and yaml	1m 50s
Lint bash, docker, markdown, and yaml	1m 50s
riscv64 Linux glibc	20m 13s
riscv64 Linux glibc	20m 13s
Validate GNU Docker image builds	55s
Validate GNU Docker image builds	55s
Validate GNU Docker release image builds	46s
Validate GNU Docker release image builds	46s
Validate musl Docker image builds	21s
Validate musl Docker image builds	21s
Validate musl Docker release image builds	31s
Validate musl Docker release image builds	31s
Validate Windows Docker image builds	1m 40s
Validate Windows Docker image builds	1m 40s
Validate Windows Docker release image builds	1m 37s
Validate Windows Docker release image builds	1m 37s
Verify CHANGELOG is valid	8s
Verify CHANGELOG is valid	8s
x86-64 Linux glibc	10m 52s
x86-64 Linux glibc	20m 35s
x86-64 Linux musl	22m 32s
x86-64 Linux musl	22m 32s
x86-64 Apple Darwin	24m 8s
x86-64 Apple Darwin	24m 8s
x86-64 Windows MSVC	38m 30s
x86-64 Windows MSVC	38m 30s
use ${{ matrix.directives }}	0s
use dtrace	20m 21s
use pool_memalign	23m 7s
	8h 12m 21s

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