Updating GHC, Hackage, CTL etc.

[bladyjoker]

DONE

• [x] Bumped to GHC 963
• [x] Bumped to Hackage index "2023-11-26T21:52:49Z" as is https://github.com/input-output-hk/plutus/blob/master/cabal.project
• [x] Using latest proto-nix (https://github.com/mlabs-haskell/proto.nix/pull/4)
• [x] Instantiated purescriptFlake with ctl-nixpkgs because node14 used is deemed obsolete in latest nixpkgs
• [x] Using latest Plutarch (https://github.com/Plutonomicon/plutarch-plutus/pull/620)
• [x] Using latest CTL (https://github.com/Plutonomicon/cardano-transaction-lib/pull/1521)

Note: This was very difficult to get right, almost 2 full days lost.

[bladyjoker]

https://github.com/input-output-hk/plutus/commit/ab4d2cc43b642d8ddc43180d1ca1c40937b1e629#diff-b8ed06757045fac949c89f2139a862498ad2b6d1f82c61a31e7c91d6cf0eaa70

[bladyjoker]

@jaredponn @szg251 merging this because it's anxiety provoking to keep it handing :D