conan: clean up #548

Job	Run time
macosx	16s
linux - archlinux \| amd64	24s
conan - linux \|	1m 16s
linux - archlinux \| arm64	6h 0m 6s
linux - debian:buster \|	1m 5s
linux - debian:buster \| arm32	6m 49s
msys2	49s
msys2 \| mingw32	49s
linux - debian:bullseye \|	1m 3s
msys2 \| mingw64	55s
linux - debian:bullseye \| arm32	6m 54s
linux - debian:bullseye \| arm64	1m 48s
linux - debian:bookworm \|	56s
linux - debian:bookworm \| arm32	7m 1s
linux - debian:bookworm \| arm64	1m 44s
linux - ubuntu:bionic \|	56s
linux - ubuntu:focal \|	54s
linux - ubuntu:jammy \|	53s
linux - ubuntu:noble \|	41s
linux - igagis/raspbian:bullseye \| arm32	2m 9s
linux - igagis/raspbian:bookworm \| arm32	2m 3s
	6h 39m 31s

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