FlashAttention-2 release

Bump to v1.0.9

Bump to v1.0.8

Bump version to 1.0.7

Merge pull request Dao-AILab#243 from ksivaman/bump_version_to_v1_0_6

bump to v1.0.6

Add ninja to pyproject.toml build-system, bump to v1.0.5

[Docs] Clearer error message for bwd d > 64, bump to v1.0.4

Bump version to 1.0.3

Bump version to v1.0.3.post0

Bump to v1.0.2