Improve the update script to use the owner of the git repo

Client/update.sh

@@ -17,10 +17,12 @@ echo "<!-- UPDATING ---!>"
 # Stop any running service
 systemctl stop RadioNode
 
-# Update the git Repo
-installUser=$(cat ./config/installerName)
-sudo su -l $installUser -c 'git fetch -a -p'
-sudo su -l $installUser -c 'git pull'
+# Get the owner of the current working directory
+cwd_owner=$(stat -c '%U' .)
+
+# Update the git Repo as the owner of the current working directory
+sudo su -l $cwd_owner -c 'git fetch'
+sudo su -l $cwd_owner -c 'git pull'
 
 # Install any new libraries
 npm i