Re #640 Add an upper bound on crypton (#642)

See:
* #640
* #641
* snoyberg/http-client#573

The immediate problem is that direct dependency `http-client-tls <=
0.3.6.4` does not support newly-released `crypton-1.1.0` (an indirect
dependency of `hpack`) but does not, itself, specify an upper bound on
`crypton`.

Use cryptohash-sha256, not crypton, for SHA256 hashes

Add support for `mhs-options` (MicroHs)

Better support for multiline literals (fixes #623)

Accept a list for `category` (fixes #624)

Fix #618 Infer cabal-version: 3.12 when PackageInfo_* is used

Also bumps stack.yaml to Stackage LTS Haskell 24.6

Preserve empty lines in `description` when `cabal-version >= 3`

(close #612)

Release 0.38.0

Release `0.37.0` (#589)

Motivation: I would like to release Stack "3.1.1" incorporating a latest
Hpack with this feature.

Release `0.36.1` (#586)