feat: remove all --force-yes usage throughout the codebase

It was deprecated in a recent apt release and shouldn't be necessary for anything any longer.

Closes #3949

docs/development/plugin-triggers.md

@@ -327,7 +327,7 @@ export DEBIAN_FRONTEND=noninteractive
 
 case "$DOKKU_DISTRO" in
   debian|ubuntu)
-    apt-get install --force-yes -qq -y nginx
+    apt-get install -qq -y nginx
     ;;
 
   opensuse)