ESPmDNS: Add method for querying discovered service name #2802

Job	Run time
Generate matrix	4s
Push event file	4s
Build (validation, esp32c6) / Build validation tests for esp32c6	3m 24s
Build (validation, esp32c3) / Build validation tests for esp32c3	2m 56s
Build (validation, esp32s2) / Build validation tests for esp32s2	3m 50s
Build (validation, esp32) / Build validation tests for esp32	4m 14s
Build (validation, esp32p4) / Build validation tests for esp32p4	2m 32s
Build (validation, esp32h2) / Build validation tests for esp32h2	3m 2s
Build (validation, esp32s3) / Build validation tests for esp32s3	4m 50s
QEMU	0s
Hardware	0s
	24m 56s

Provide feedback