Prep and enable clang-format #189

Job	Run time
build (meson, ubuntu:22.04, true)	1m 21s
build (meson, ubuntu:24.04, true)	1m 31s
build (meson, archlinux:base-devel, true)	1m 36s
build (meson, fedora:latest)	1m 40s
build (meson, alpine:latest, -D docs=false)	51s
build (meson, debian:unstable, true)	1m 46s
build (autotools, ubuntu:22.04, true)	1m 38s
build (autotools, ubuntu:24.04, true)	2m 0s
build (autotools, archlinux:base-devel, true)	2m 2s
build (autotools, fedora:latest)	2m 34s
build (autotools, alpine:latest, -D docs=false)	1m 40s
build (autotools, debian:unstable, true)	2m 16s
	20m 55s

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