ci: MacOS fix - remove rt lib from linker in Makefile #1400

Job	Run time
build-debian-bookworm-x86_64	5m 41s
build-macOS-x86_64	5m 27s
build-debian-bookworm-aarch64-rpi5	6m 8s
build-debian-bookworm-armhf-rpi4	0s
build-debian-bookworm-armhf-rpi5	0s
build-debian-bookworm-aarch64-rpi4	6m 3s
build-debian-bullseye-aarch64-rpi3	0s
build-debian-bullseye-aarch64-rpi4	5m 39s
build-debian-bullseye-armhf-rpi4	0s
build-debian-bullseye-x86_64	4m 19s
build-macOS-Apple-Silicon	3m 25s
build-debian-bookworm-aarch64-rpi3	0s
build-debian-bookworm-armhf-rpi3	0s
build-debian-bullseye-armhf-rpi3	0s
create-prerelease	1s
create-release	1s
	36m 44s

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