We need an explicit note here that `beaconValidators` are not reflecting the CL state anymore and set to be always `depositedValidators`

[mkurayan]

We need an explicit note here that beaconValidators are not reflecting the CL state anymore and set to be always depositedValidators

Originally posted by @folkyatina in #1436 (comment)

[TUPM96]

Opened #1829 to clarify that \getBeaconStat().beaconValidators\ is a compatibility alias for \depositedValidators, not a separate CL-state validator count reported by the oracle.