fix: lxd cpu limit can be surrounded by double quotes #1908

Job	Run time
setup-release	10s
linux-snap-packaging	9m 5s
linux-debian-packaging	5m 15s
linux-rpm-packaging	1m 4s
macosx-packaging (macos-latest, x86_64)	2m 29s
macosx-packaging (macos-latest, arm64)	3m 5s
sources	1m 1s
windows-packaging (x64)	7m 54s
windows-packaging (x86)	10m 40s
linux-appimage	2m 1s
linux-installer	28s
publish-release	0s
publish-nightly	0s
	43m 12s

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