chore: bump workspace to 0.19.0

Breaking upstream bumps (signet-sdk 0.18->0.19, storage 0.9->0.10,
init4-bin-base 0.21->0.23) plus the new KnownChains::Gouda wiring
warrant a minor bump under 0.x semver. Mirrors the 0.17.2->0.18.0
precedent from #143 (storage 0.7->0.8).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: rswanson

Cargo.toml

@@ -3,7 +3,7 @@ members = ["crates/*"]
 resolver = "2"
 
 [workspace.package]
-version = "0.18.0"
+version = "0.19.0"
 edition = "2024"
 rust-version = "1.88"
 authors = ["init4"]
@@ -34,16 +34,16 @@ debug = false
 incremental = false
 
 [workspace.dependencies]
-signet-blobber = { version = "0.18.0", path = "crates/blobber" }
-signet-block-processor = { version = "0.18.0", path = "crates/block-processor" }
-signet-genesis = { version = "0.18.0", path = "crates/genesis" }
-signet-host-reth = { version = "0.18.0", path = "crates/host-reth" }
-signet-host-rpc = { version = "0.18.0", path = "crates/host-rpc" }
-signet-node = { version = "0.18.0", path = "crates/node" }
-signet-node-config = { version = "0.18.0", path = "crates/node-config" }
-signet-node-tests = { version = "0.18.0", path = "crates/node-tests" }
-signet-node-types = { version = "0.18.0", path = "crates/node-types" }
-signet-rpc = { version = "0.18.0", path = "crates/rpc" }
+signet-blobber = { version = "0.19.0", path = "crates/blobber" }
+signet-block-processor = { version = "0.19.0", path = "crates/block-processor" }
+signet-genesis = { version = "0.19.0", path = "crates/genesis" }
+signet-host-reth = { version = "0.19.0", path = "crates/host-reth" }
+signet-host-rpc = { version = "0.19.0", path = "crates/host-rpc" }
+signet-node = { version = "0.19.0", path = "crates/node" }
+signet-node-config = { version = "0.19.0", path = "crates/node-config" }
+signet-node-tests = { version = "0.19.0", path = "crates/node-tests" }
+signet-node-types = { version = "0.19.0", path = "crates/node-types" }
+signet-rpc = { version = "0.19.0", path = "crates/rpc" }
 
 init4-bin-base = { version = "0.23.1", features = ["alloy"] }