Sort versions semantically instead of lexically

[elioengcomp]

As pointed out by thepudds on the gocenter slack channel:

You might also want to sort that table so that is shows most recent versions first? E.g., maybe use something like: https://github.com/rogpeppe/go-internal/blob/master/semver/semver.go#L115 (edited) Right now, it looks like a purely lexical sort order and ignoring the syntax and precedence of semver, which means a v0.11.0 is at the bottom while a v0.9.0 is near the top, as seen here: https://search.gocenter.io/github.com~2Fgoph~2Flogur/versions

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[ankushchadha]

Fixes rolled out to prod. Backend fixes were rolled out last week.