Migrate tarantoolctl from tarantool repository

Since Tarantool 3.0.0-alpha1 [1] is not going to be distributed as a set
of packages for specific distros. The tarantoolctl utility is in the
old packages but it will not be in the new ones [2][3].

Utility was added to the root directory of the project for a test run.
Now the test run will always use the local tarantoolctl.

Despite this changes the tests should be rewritten to use `tt` instead
of `tarantoolctl` because it will be replaced.

[1] https://github.com/tarantool/tarantool/releases/tag/3.0.0-alpha1
[2] tarantool/tarantool#8771
[3] tarantool/tarantool#8866
[4] tarantool/tarantool#8484

Close #400

lib/tarantool_server.py

@@ -702,10 +702,7 @@ def find_exe(cls, builddir, silent=True, executable=None):
         color_log(path + ' ...\n', schema='path')
         for _dir in path.split(os.pathsep):
             exe = executable if executable else os.path.join(_dir, cls.default_tarantool["bin"])
-            ctl_dir = _dir
-            # check local tarantoolctl source
-            if _dir == builddir:
-                ctl_dir = os.path.join(_dir, '../extra/dist')
+            ctl_dir = cls.TEST_RUN_DIR
             ctl = os.path.join(ctl_dir, cls.default_tarantool['ctl'])
 
             need_lua_path = False