fix(tools): Use correct hash when automatically updating flatpak version

Before v0.2.9 would be sorted below v0.2.12, giving the wrong hash.

(cherry picked from commit 1f1cb2f5f9)

tools/update-toxcore-version.sh

@@ -51,7 +51,7 @@ update_osx() {
 
 update_flatpak() {
     cd flatpak
-    latest_tag_ref=$(git ls-remote --tags https://github.com/toktok/c-toxcore | tail -n1)
+    latest_tag_ref=$(git ls-remote --tags https://github.com/toktok/c-toxcore | sort -V -k2 | tail -n1)
     ref_array=($latest_tag_ref)
     commit_hash=${ref_array[0]}
     perl -i -0pe "s|(https://github.com/toktok/c-toxcore.*?)$VERSION_PATTERN(.*?)[a-f0-9]{40}|\${1}$@\${2}$commit_hash|gms" io.github.qtox.qTox.json