message: mark deprecated as deprecated indy_prover_get_credentials_for_proof_req
diff: @@ -1153,6 +1153,7 @@ pub extern fn indy_prover_close_credentials_search(command_handle: i32,
  /// Annoncreds*
  /// Common*
  /// Wallet*
  +#[deprecated(since="1.6.1", note="Please use indy_prover_search_credentials_for_proof_req instead!")]
  #[no_mangle]
  pub extern fn indy_prover_get_credentials_for_proof_req(command_handle: i32,
  wallet_handle: i32,
  