[core][esp32_rmt_led_strip] Migrate ExternalRAMAllocator to RAMAllocator #19

Job	Run time
Create common environment	11s
Check flake8	13s
Check black	15s
Run script/ci-custom	21s
Check clang-format	26s
list-components	0s
Check pylint	1m 30s
Check pyupgrade	11s
Run pytest (3.9, ubuntu-latest)	20s
Run pytest (3.10, ubuntu-latest)	1m 18s
Run pytest (3.11, ubuntu-latest)	54s
Run pytest (3.11, macOS-latest)	3m 11s
Run pytest (3.11, windows-latest)	2m 27s
Run pytest (3.12, ubuntu-latest)	53s
Component test ${{ matrix.file }}	0s
Split components for testing into 20 groups maximum	0s
Test split components	0s
Run script/clang-tidy for ESP8266	3m 12s
Run script/clang-tidy for ESP32 Arduino 1/4	9m 11s
Run script/clang-tidy for ESP32 Arduino 2/4	8m 23s
Run script/clang-tidy for ESP32 Arduino 3/4	8m 14s
Run script/clang-tidy for ESP32 Arduino 4/4	9m 12s
Run script/clang-tidy for ESP32 IDF	2m 43s
CI Status	1s
	53m 6s

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