AUTH-6667 document identity_update_behavior field in Access identity …

…providers

docs/resources/zero_trust_access_identity_provider.md

@@ -129,8 +129,8 @@ Read-Only:
 Optional:
 
 - `enabled` (Boolean)
-- `group_member_deprovision` (Boolean)
-- `identity_update_behavior` (String)
+- `group_member_deprovision` (Boolean) Deprecated. Use `identity_update_behavior`.
+- `identity_update_behavior` (String) Indicates how a SCIM event updates a user identity used for policy evaluation. Use "automatic" to automatically update a user's identity and augment it with fields from the SCIM user resource. Use "reauth" to force re-authentication on group membership updates, user identity update will only occur after successful re-authentication. With "reauth" identities will not contain fields from the SCIM user resource. With "no_action" identities will not be changed by SCIM updates in any way and users will not be prompted to reauthenticate.
 - `seat_deprovision` (Boolean)
 - `secret` (String, Sensitive)
 - `user_deprovision` (Boolean)