ESP-IDF: Format string fixes

[mbronk]

Just a small fix for printf-like format strings for 32-bit integers.
W/o this, when compiling using esp-idf framework on Windows (amd64), I got a series of warnings (treated as errors) similar to the one below:

In file included from src/esphome/components/miot/miot_dump.cpp:1:
src/esphome/components/miot/miot_dump.cpp: In function 'void esphome::miot::dump(const char*, const MiBeacon&)':
src/esphome/components/miot/miot_dump.cpp:51:19: error: format '%X' expects argument of type 'unsigned int', but argument 5 has type 'long unsigned int' [-Werror=format=]
   51 |     ESP_LOGD(TAG, "  RND: %06X", mib.random_number >> 8);
      |                   ^~~~~~~~~~~~~
src/esphome/core/log.h:72:36: note: in definition of macro 'ESPHOME_LOG_FORMAT'
   72 | #define ESPHOME_LOG_FORMAT(format) format
      |                                    ^~~~~~
src/esphome/core/log.h:152:28: note: in expansion of macro 'esph_log_d'
  152 | #define ESP_LOGD(tag, ...) esph_log_d(tag, __VA_ARGS__)
      |                            ^~~~~~~~~~
src/esphome/components/miot/miot_dump.cpp:51:5: note: in expansion of macro 'ESP_LOGD'
   51 |     ESP_LOGD(TAG, "  RND: %06X", mib.random_number >> 8);
      |     ^~~~~~~~
src/esphome/components/miot/miot_dump.cpp:51:30: note: format string is defined here
   51 |     ESP_LOGD(TAG, "  RND: %06X", mib.random_number >> 8);
      |                           ~~~^
      |                              |
      |                              unsigned int
      |                           %06lX