Introduce ReceiveAuthKey verification for Blinded Payment Paths #20985

Job	Run time
ext-test	5m 51s
build (macos-latest, 1.75.0)	1h 24m 0s
build (macos-latest, stable)	1h 50m 59s
build (self-hosted, beta)	1h 18m 22s
build (windows-latest, stable)	2h 29m 38s
build-tx-sync (ubuntu-latest, stable)	4m 39s
build-tx-sync (ubuntu-latest, beta)	4m 59s
build (self-hosted, stable)	1h 17m 44s
benchmark	16m 41s
build (self-hosted, 1.75.0)	1h 20m 15s
build-tx-sync (macos-latest, 1.75.0)	7m 3s
build-tx-sync (macos-latest, beta)	7m 8s
build-tx-sync (macos-latest, stable)	6m 58s
build-tx-sync (ubuntu-latest, 1.75.0)	5m 18s
fuzz	1h 16m 28s
linting	2m 40s
rustfmt	16s
check_release	3m 1s
check_docs	5m 49s
coverage	28m 33s
	12h 36m 22s

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