fix(ltoa): Use proper `labs` for long values and fix affected sketches detection #5323

Job	Run time
Push event file	5s
Generate matrix	6s
Build (validation, esp32) / Build validation tests for esp32	10s
Build (validation, esp32s2) / Build validation tests for esp32s2	9s
Build (validation, esp32s3) / Build validation tests for esp32s3	10s
Build (validation, esp32c3) / Build validation tests for esp32c3	7s
Build (validation, esp32h2) / Build validation tests for esp32h2	9s
Build (validation, esp32p4) / Build validation tests for esp32p4	7s
Build (validation, esp32c6) / Build validation tests for esp32c6	9s
QEMU	0s
Hardware	0s
	1m 12s

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