Update resolver lts-20.18 -> lts-24.19

[a12l]

It seems that you can't build clock on FreeBSD. See discussion in the forums.

This PR updates the Stack snapshot from lts-20.18 (GHC 9.2.7) to lts-24.19 (GHC 9.10.3). I know that GHC 9.10.3 is a quite modern version, but it has reached the point release 3 so it should hopefully be quite stable. GHCup still recommends 9.6.7, but from what I understand from some discussions they will update those in the not so distant future. And based on the commit history it doesn't look like we update the stack version so often, so if we are going to be stuck on the same version for the coming two years I would prefer the most recent stable version.

I changed the resolver with the command grep -rl 'resolver' | xargs sed -i '' -e 's/20.18/24.19/g'

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