Migrate from rust-web3 to alloy

Cargo.toml

@@ -38,6 +38,8 @@ repository = "https://github.com/graphprotocol/graph-node"
 license = "MIT OR Apache-2.0"
 
 [workspace.dependencies]
+alloy = { version = "0.15.10", features = ["full", "json-rpc"] }
+alloy-rpc-types = "0.15.10"
 anyhow = "1.0"
 async-graphql = { version = "7.0.15", features = ["chrono"] }
 async-graphql-axum = "7.0.15"
@@ -92,6 +94,7 @@ thiserror = "2.0.12"
 tokio = { version = "1.45.1", features = ["full"] }
 tonic = { version = "0.12.3", features = ["tls-roots", "gzip"] }
 tonic-build = { version = "0.12.3", features = ["prost"] }
+tower = { version = "0.5.1", features = ["full"] }
 tower-http = { version = "0.5.2", features = ["cors"] }
 wasmparser = "0.118.1"
 wasmtime = "33.0.0"

chain/ethereum/Cargo.toml

@@ -15,6 +15,7 @@ tiny-keccak = "1.5.0"
 hex = "0.4.3"
 semver = "1.0.23"
 thiserror = { workspace = true }
+tower = { workspace = true }
 
 itertools = "0.14.0"