Update password.py (#71295)

List md5_crypt, bcrypt, sha256_crypt, sha512_crypt as hash schemes in the password plugin.

lib/ansible/plugins/lookup/password.py

@@ -28,7 +28,7 @@ DOCUMENTATION = """
          required: True
       encrypt:
         description:
-           - Which hash scheme to encrypt the returning password, should be one hash scheme from C(passlib.hash).
+           - Which hash scheme to encrypt the returning password, should be one hash scheme from C(passlib.hash; md5_crypt, bcrypt, sha256_crypt, sha512_crypt)
            - If not provided, the password will be returned in plain text.
            - Note that the password is always stored as plain text, only the returning password is encrypted.
            - Encrypt also forces saving the salt value for idempotence.