BLE: `BLECharacteristic::setValue()` cleanup and optimization #5013

Job	Run time
Push event file	4s
Generate matrix	4s
Build (validation, esp32p4) / Build validation tests for esp32p4	1m 45s
Build (validation, esp32h2) / Build validation tests for esp32h2	1m 45s
Build (validation, esp32) / Build validation tests for esp32	1m 44s
Build (validation, esp32s3) / Build validation tests for esp32s3	1m 44s
Build (validation, esp32s2) / Build validation tests for esp32s2	1m 45s
Build (validation, esp32c3) / Build validation tests for esp32c3	1m 44s
Build (validation, esp32c6) / Build validation tests for esp32c6	1m 44s
QEMU	0s
Hardware	0s
	12m 19s

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