This commit updates the Panic handler behavior Kconfig setting to make
the GDBStub on Panic (CONFIG_ESP_SYSTEM_PANIC_GDBSTUB) option to be only
available when esp_gdbstub is part of the component list of the build.
Closes https://github.com/espressif/esp-idf/issues/13218
This commit deprecates the `#include "freertos/task_snapshot.h" include path:
- Adds compatibility header with compile time warning
- Removes hints related to `task_snapshot.h`
- Adds entry to migration guide