Hackage release with 9.0.1 support

[jneira]

• Thanks for merging Fix build for GHC 9.0.1 #26
• It would be great to have a hackage release to unblock hls use of this package
• Thanks in advance @HeinrichApfelmus!

[HeinrichApfelmus]

I have published https://hackage.haskell.org/package/operational-0.2.4.0 . Does that work for you?

[jneira]

many thanks for the release, i've just opened a pr to use the hackage version, lets see if ci is happy

[jneira]

all is fine with the last release, many thanks @HeinrichApfelmus