Bump solc version to 0.8.23, update nix flake and update dependencies #6330

Job	Run time
Checking what packages need to be built	5s
Test ethereum-contracts (Feature Branch) / Preparing Conditional Strategy Matrix	4s
Coverage test ethereum-contracts (Feature Branch) / Preparing Conditional Strategy Matrix	2s
Hot Fuzz Superfluid Protocol (Feature Branch) / Test HotFuzz - Linux	3m 14s
Test Automation Contracts (Feature Branch) / Test Automation Contracts (18)	7m 17s
Test Solidity Semantic Money Library (Feature Branch) / Test solidity-semantic-money - Linux	6m 52s
Test Automation Contracts (Feature Branch) / Test Automation Contracts (20)	5m 53s
Test Subgraph (Feature Branch) / Run subgraph integration tests	11m 16s
Test Subgraph (Feature Branch) / Run subgraph unit tests	6m 52s
Test SDK-Core (Feature Branch) / Test SDK-Core	12m 54s
Test SDK-Core (Feature Branch) / Test SDK-Core	12m 39s
Test Spec Haskell (Feature Branch) / Test Spec Haskell - Linux - ghc-9.2	2m 54s
Test Spec Haskell (Feature Branch) / Test Spec Haskell - Linux - ghc-9.4	2m 54s
Coverage test ethereum-contracts (Feature Branch) / Test ethereum-contracts (20)	5m 9s
Test ethereum-contracts (Feature Branch) / Test ethereum-contracts (18)	29m 2s
Test ethereum-contracts (Feature Branch) / Test ethereum-contracts (20)	25m 45s
Upload Coverage Reports (Feature Branch)	0s
All packages tested (Feature Branch)	1s
	2h 12m 53s

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