tests(integration): move most test inside groups.

tests/integration/ps.bats

@@ -1,30 +0,0 @@
-#!/usr/bin/env bats
-# apparmor.d - Full set of apparmor profiles
-# Copyright (C) 2024 Alexandre Pujol <alexandre@pujol.io>
-# SPDX-License-Identifier: GPL-2.0-only
-
-load common
-
-@test "ps: List all running processes" {
-    ps aux
-}
-
-@test "ps: List all running processes including the full command string" {
-    ps auxww
-}
-
-@test "ps: List all processes of the current user in extra full format" {
-    ps --user "$(id -u)" -F
-}
-
-@test "ps: List all processes of the current user as a tree" {
-    ps --user "$(id -u)" -f
-}
-
-@test "ps: Get the parent PID of a process" {
-    ps -o ppid= -p 1
-}
-
-@test "ps: Sort processes by memory consumption" {
-    ps auxww --sort size
-}