scripts/build/update-gh-pages: fix parsing of latest release tag

Use --version-sort when sorting versions. Fixes the stable/ symlink that
is expected to point to the release with the highest version number.

Signed-off-by: Markus Lehtonen <[email protected]>

Author: marquiz

scripts/build/update-gh-pages.sh

@@ -147,7 +147,7 @@ pushd "$build_dir"
 # Add "const" files we need in root dir
 touch .nojekyll
 
-_stable=`(ls -d1 v*/ || :) | sort -n | tail -n1`
+_stable=`(ls -d1 v*/ || :) | sort -V | tail -n1`
 if [ -n "$_stable" ]; then
     ln -sfT "$_stable" stable
     redirect_to="stable"