Fix broken QEMU link

[JohnTitor]

Use specified version instead (it'd be great if Zola could ignore some paths on link-checker, I imagine).

[phil-opp]

Thanks!

it'd be great if Zola could ignore some paths on link-checker

It can and we're already using that feature:

blog_os/blog/config.toml

Lines 19 to 30 in e8f5ee9

	[link_checker]
	skip_prefixes = [
	"https://crates.io/crates", # see https://github.com/rust-lang/crates.io/issues/788
	"https://www.amd.com/system/files/TechDocs/", # seems to have problems with PDFs
	"https://developer.apple.com/library/archive/qa/qa1118/_index.html", # results in a 401 (I don't know why)
	"https://github.com", # rate limiting often leads to "Error 429 Too Many Requests"
	"https://www.linkedin.com/", # seems to send invalid HTTP status codes
	]
	skip_anchor_prefixes = [
	"https://github.com/", # see https://github.com/getzola/zola/issues/805
	"https://docs.rs/x86_64/0.1.2/src/", # source code highlight
	]

In general I try to check as many links as possible in order to prevent link-rot.