allow latest versions of dependencies + GHC 9.4

[byorgey]

Update dependencies + add GHC 9.4 to CI. Closes #748 .

[xsebek]

I tried running integration tests and noticed that they were a few seconds slower.

Running benchmarks seems to confirm this:

Benchmark	ghc810	ghc90	ghc92	ghc94
GeoMean (calculated)	1.00	-0.5%	62.1%	60.2%
run 1000 game ticks/circlers/10	0.27	-1.7%	9.6%	11.6%
run 1000 game ticks/circlers/20	0.53	1.6%	9.5%	9.3%
run 1000 game ticks/circlers/30	0.78	1.9%	11.1%	12.8%
run 1000 game ticks/circlers/40	1.06	8.8%	6.4%	8.3%
run 1000 game ticks/idlers/10	2.56e-3	-5.4%	144.9%	129.9%
run 1000 game ticks/idlers/20	2.71e-3	-11.4%	124.8%	113.8%
run 1000 game ticks/idlers/30	2.59e-3	-7.2%	129.6%	124.0%
run 1000 game ticks/idlers/40	2.53e-3	-2.0%	141.8%	133.2%
run 1000 game ticks/movers/10	0.47	6.6%	18.1%	18.5%
run 1000 game ticks/movers/20	0.98	8.5%	12.0%	16.6%
run 1000 game ticks/movers/30	1.46	6.9%	12.6%	17.6%
run 1000 game ticks/movers/40	1.94	1.8%	15.1%	15.1%
run 1000 game ticks/trees/10	2.48e-3	3.4%	142.1%	132.5%
run 1000 game ticks/trees/20	2.55e-3	-2.7%	137.9%	127.8%
run 1000 game ticks/trees/30	2.48e-3	-1.4%	146.0%	138.1%
run 1000 game ticks/trees/40	2.87e-3	-12.1%	115.0%	108.4%

I will update once I check this against other GHC versions. 🙂 UPDATE: GHC9.2 seems to be worse, so we can add GHC9.4 without regrets.

[xsebek]

LGTM! 🚀 @byorgey should we also add it to the CI? I think we should have enough cache space for one more GHC, but if not we can drop GHC9.0. 🙂

[byorgey]

Adding GHC 9.4 to CI went flawlessly, though it took a very long time to build. Hopefully with caching it will speed up on subsequent runs, I am not quite sure how that works.

EDIT: yes, indeed, running CI on GHC 9.4 was much faster the second time.