Upgrade qemu and integrate qemu-user runners for loongarch64 #4182

Job	Run time
fmt	8s
cargo-deny	25s
generate-matrix	22s
check	21s
test (macos-latest)	1m 37s
shellcheck	11s
test (ubuntu-latest)	1m 8s
test (windows-latest)	2m 37s
clippy (macos-latest)	51s
clippy (ubuntu-latest)	22s
clippy (windows-latest)	57s
foreign	2m 42s
remote	1m 53s
bisect	3m 40s
target (${{ matrix.pretty }},${{ matrix.os }})	0s
docker-in-docker	3m 46s
podman	2m 7s
publish	0s
conclusion	1s
Coverage	12s
	23m 20s

Provide feedback