feat(mqtt): Updates submodule to 05b3476

* Update submodule:
git log --oneline 301bd9e0282eb993523b84d6c56d2559346aa071..05b347643f6679cc60a50a9664b86a24ebf3ae10

Detailed description of the changes:
* Fix: Mock test should include idf_additions.h
  - See merge request espressif/esp-mqtt!191
  - fix: Mock tests include idf_additions.h (espressif/esp-mqtt@f35aaa1)
* Adds missing documentation to outbox configuration.
  - See merge request espressif/esp-mqtt!190
  - docs: Adds missing documentation to outbox configuration. (espressif/esp-mqtt@c355e0b)

components/mqtt/esp-mqtt

@@ -1 +1 @@
-Subproject commit 301bd9e0282eb993523b84d6c56d2559346aa071
+Subproject commit 05b347643f6679cc60a50a9664b86a24ebf3ae10

docs/doxygen-known-warnings.txt

@@ -1,5 +1,3 @@
-mqtt_client.h:line: warning: Compound esp_mqtt_client_config_t::outbox_config_t is not documented.
-mqtt_client.h:line: warning: Member outbox (variable) of class esp_mqtt_client_config_t is not documented.
 semphr.h:line: warning: argument 'pxStaticSemaphore' of command @param is not found in the argument list of xSemaphoreCreateCounting(uxMaxCount, uxInitialCount)
 task.h:line: warning: argument 'pxTaskDefinition' of command @param is not found in the argument list of vTaskAllocateMPURegions(TaskHandle_t xTask, const MemoryRegion_t *const pxRegions)
 task.h:line: warning: argument 'pxCreatedTask' of command @param is not found in the argument list of vTaskAllocateMPURegions(TaskHandle_t xTask, const MemoryRegion_t *const pxRegions)