change(bt): Modify test_app directory layout

- Existing test app is put in a new subdirectory "basic_unit_test"

components/bt/test_apps/.build-test-rules.yml

@@ -1,6 +1,6 @@
 # Documentation: .gitlab/ci/README.md#manifest-file-to-control-the-buildtest-apps
 
-components/bt/test_apps:
+components/bt/test_apps/basic_unit_test:
   disable:
     - if: IDF_TARGET not in ["esp32", "esp32c3"]
       reason: Sufficient to run the tests on one chip of each architecture

components/bt/test_apps/basic_unit_test/pytest_basic_unit_test.py

@@ -1,6 +1,5 @@
-# SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
+# SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
 # SPDX-License-Identifier: CC0-1.0
-
 import pytest
 from pytest_embedded import Dut
 

components/bt/test_apps/basic_unit_test/sdkconfig.defaults

@@ -1,3 +1,2 @@
 CONFIG_BT_ENABLED=y
-CONFIG_UNITY_FREERTOS_STACK_SIZE=12288
 CONFIG_ESP_TASK_WDT_CHECK_IDLE_TASK_CPU0=n