doc,crypto: mark raw key formats as stable

Signed-off-by: Filip Skokan <panva.ip@gmail.com>
PR-URL: #66829
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Ulises Gascón <ulisesgascongonzalez@gmail.com>

Author: panva

doc/api/crypto.md

@@ -160,8 +160,6 @@ and is the fastest serialized import format.
 
 #### Raw key formats
 
-> Stability: 1.1 - Active development
-
 The `'raw-public'`, `'raw-private'`, and `'raw-seed'` key formats allow
 importing and exporting raw key material without any encoding wrapper.
 See [`keyObject.export()`][], [`crypto.createPublicKey()`][], and