Bump the Firehose forks to world-chain-v2.4.3-fh3.1-2

[sduchesneau]

Bumps both Firehose forks from world-chain-v2.4.3-fh3.1-1 to world-chain-v2.4.3-fh3.1-2 and opens the v2.4.3-fh3.1-2 changelog section. Both tags now exist.

The only change is the 256-byte cap on keccak preimages. Values in Call.keccak_preimages could reach 65536 bytes each (131072 hex characters). The map is there so a consumer can walk a storage slot back to the expression that produced it, and Solidity's slot derivations are small: 32 bytes for a dynamic array or a bytes/string longer than 31 bytes, 64 bytes for a mapping with a value-type key, and 32 bytes plus the key for a mapping(string => V). 256 bytes covers all of those with 224 bytes of room for a dynamic key. Oversized preimages are dropped rather than truncated, since a truncated preimage no longer hashes back to its map key.

No source change is needed here — the cap lives in the reth fork's crates/firehose/src/inspector.rs.

Cargo.toml and Cargo.lock were updated by hand, substituting the tag string and the locked revs across 148 Cargo.toml and 148 Cargo.lock entries:

Fork	Pins	rev
streamingfast/reth	104	0895359337 → b85f5464cf (streamingfast/reth#43)
streamingfast/optimism	44	49b6568664 → 497043385e (streamingfast/optimism#21)

Neither commit touches a Cargo.toml, so the dependency graph is unchanged and nothing else in the lock moves.