Add option to skip LFS integrity check
Although we've improved LFS integrity check performance https://gitlab.com/gitlab-org/gitlab-ce/issues/45062, there will always be limits to how much can be validated before the timeout is reached. We should provide an escape hatch to prevent users getting stuck.
Proposal
Consider supporting an -o skip-lfs-integrity-check
push option (https://gitlab.com/gitlab-org/gitlab-ce/issues/50609#note_101135872)