Add support for ghc-8.10.4 and drop it for ghc-8.10.1

[jneira]

• We dont have time and resources to support all possible ghc versions (as commented here) so, as we are supporting 8.8.2..8.8.4 i propose only support the last three minor version of each major version too for 8.10
• This pr drops the unused (afaik) ci azure config
• Closes Add ghc-8.10.4 support #1317

[jneira]

Not sure it this will work out of the box

[jneira]

What do you think in make a github release after adding ghc-8.10.4 support?, it would have hiedb included
//cc @pepeiborra @wz1000

[jneira]

When ci is green i will remove the github required checks for ghc-8.10.1 and add ghc-8.10.4 ones

[Ailrun]

Awesome, Thanks. I hope there's no one left behind with GHC 8.10.1...

[wz1000]

I'm OK with a release.

There have been no bug reports about hiedb so far, so either its working as intended (yay!), or nobody is using it. If its the latter, I'm ready for people to start dropping the bug reports once they start using it.

[jneira]

I need some window time to

1. disable actual ci checks for the test suite for 8.10.3
2. merge the pr
3. enable new ci checks for the test suite and 8.10.4

and no merge other pr's with a failing test suite between 1 and 2

Then we should update the rest of pr's (that is enforced by github)

[Ailrun]

I think we can do 1. and 3. together. If so, all other PRs cannot be merged until this one is merged. (and so we don't need a special time window)

[jneira]

yeah, I didn't want block anyone though, I will wait until I come home and will change them if I can't do the switch &merge fast