Prevent wamser self update to modify zshrc

bin/update

@@ -242,7 +242,14 @@ update-wasm() {
     echo -e "\033[32;1m=== Updating wasmer ===\033[0m"
     local start=`date +%s`
 
+    local old_path=$PWD
+
+    cd ~/.config/dotfiles
+    git stash > /dev/null 2>&1
     wasmer self-update
+    git checkout zshrc > /dev/null 2>&1
+    git stash pop > /dev/null 2>&1
+    cd $old_path
 
     local seconds=$((`date +%s` - $start))
     local formatted=`date -ud "@$seconds" +'%H hours %M minutes %S seconds'`