build(release): fix release branchversion comparison in release script [skip ci]

utils/version.pl

@@ -304,7 +304,7 @@ sub vsCompare {
       ($v->{minor} // 0) <=> ($w->{minor} // 0) ||
       ($v->{patch} // 0) <=> ($w->{patch} // 0) ||
       ($v->{branchname} // '') cmp ($w->{branchname} // '') ||
-      ($v->{branchversion} // '') <=> ($w->{branchversion} // '') ||
+      ($v->{branchversion} // 0) <=> ($w->{branchversion} // 0) ||
       ($v->{subpatch} // '') cmp ($w->{subpatch} // '')
     )
   } elsif('v' eq $v->{prefix} and 'v' ne $w->{prefix}) {