Refactor ETag to use GZIP CRC32 trailer #232

Job	Run time
ESP32 (arduino-cli) - Dev	30m 26s
ESP32 (arduino-cli) - Release	30m 47s
ESP32 (pio) - Arduino 2 (esp32-s2-saola-1)	11m 3s
ESP32 (pio) - Arduino 2 (esp32-c3-devkitc-02)	10m 17s
ESP32 (pio) - Arduino 3 (esp32dev)	21m 53s
ESP32 (pio) - Arduino 3 (esp32-s3-devkitc-1)	22m 43s
ESP32 (pio) - Arduino 3 (esp32-s2-saola-1)	21m 47s
ESP32 (pio) - Arduino 2 (esp32dev)	11m 1s
ESP32 (pio) - Arduino 3 (esp32-h2-devkitm-1)	18m 23s
ESP32 (pio) - Arduino 3 (esp32-c6-devkitc-1)	21m 13s
ESP32 (pio) - Arduino 3 (esp32-c3-devkitc-02)	20m 50s
ESP32 (pio) - Arduino 2 (esp32-s3-devkitc-1)	11m 31s
ESP32 (pio) - Specific Envs (ci-arduino-3-latest-asynctcp)	20m 31s
ESP32 (pio) - Arduino 3 (esp32-p4)	20m 52s
ESP32 (pio) - Arduino Latest (esp32-s2-saola-1)	18m 15s
ESP32 (pio) - Specific Envs (ci-arduino-3-no-json)	22m 57s
ESP32 (pio) - Arduino Latest (esp32-c3-devkitc-02)	17m 23s
ESP32 (pio) - Arduino Latest (esp32-c6-devkitc-1)	17m 29s
ESP32 (pio) - Arduino Latest (esp32-h2-devkitm-1)	15m 14s
ESP32 (pio) - Arduino Latest (esp32dev)	17m 46s
ESP32 (pio) - Arduino Latest (esp32-s3-devkitc-1)	19m 12s
	6h 41m 33s

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