Change LIFETIME_REQUIRED regex

Changed the expected LIFETIME_REQUIRED error because commit
nspcc-dev/neofs-node@af62f2d
changes it in the product code.

Signed-off-by: Oleg Kulachenko <oleg@nspcc.ru>

pytest_tests/helpers/grpc_responses.py

@@ -18,7 +18,7 @@
 OBJECT_IS_LOCKED = "code = 2050"
 LOCK_NON_REGULAR_OBJECT = "code = 2051"
 
-LIFETIME_REQUIRED = "either expiration epoch of a lifetime is required"
+LIFETIME_REQUIRED = "expiration epoch or lifetime period is required"
 LOCK_OBJECT_REMOVAL = "lock object removal"
 LOCK_OBJECT_EXPIRATION = "lock object expiration: {expiration_epoch}; current: {current_epoch}"
 INVALID_RANGE_ZERO_LENGTH = "invalid '{range}' range: zero length"