api: revert use of apt-get on lock check

modern `apt` has integrated lock waiting and this improves the `apt_lock_wait` function. `apt-get` does not implement that functionality and immediately returns similar to how old `apt` worked.

continue using `apt` and monitor apt 3.0 for any string output changes

api

@@ -354,7 +354,8 @@ apt_lock_wait() { #Wait until other apt processes are finished before proceeding
   done
 
   #Try to install a non-existent package to see if apt fails due to a lock-file. Repeat until no errors mention 'Could not get lock'
-  while sudo -E apt-get install lkqecjhxwqekc 2>&1 | grep -q 'Could not get lock' ;do
+  #NOTE: after apt 3.0 this output may change. Refer to git blame for this line for more info.
+  while sudo -E apt install lkqecjhxwqekc 2>&1 | grep -q 'Could not get lock' ;do
     sleep 1
   done