Merge branch 'fix-io-uring-setup-manual' of https://github.com/wapxmas/liburing

* 'fix-io-uring-setup-manual' of https://github.com/wapxmas/liburing:
  man/io_uring_setup.2: a version of IORING_FEAT_SQPOLL_NONFIXED feature availability has been changed to 5.11