feat(katana): default to deserialize response as JSON (#157)

Deserialize the JSON-RPC response object as a raw JSON to make the client compatible with other Starknet RPC spec. 

Currently, we deserialize the response as concrete types from `starknet-rs` crate. The crate only supports a single RPC spec at a time so the types are bounded to a single RPC spec. Meaning the client is only compatible when interacting the a server of a similar spec. 

Deserializing as raw JSON makes the client more flexible and can be used to interact with Starknet servers regardless of the RPC spec version.

Author: kariy

Cargo.lock

@@ -27,6 +27,7 @@ inquire = "0.7.5"
 # Rev on branch starknet 0.15.1.
 piltover = { git = "https://github.com/cartridge-gg/piltover.git", rev = "3bed7ac554259668dbdce6a5f56de5b2bf7faf43" }
 rand.workspace = true
+serde.workspace = true
 shellexpand = "3.1.0"
 spinoff.workspace = true
 starknet.workspace = true
@@ -37,6 +38,7 @@ tracing.workspace = true
 url.workspace = true
 
 colored_json = { version = "5.0", optional = true }
+serde_json = { workspace = true, optional = true }
 
 [build-dependencies]
 vergen = { version = "9.0.0", features = [ "build", "cargo", "emit_and_set" ] }
@@ -55,7 +57,7 @@ tempfile.workspace = true
 default = [ "cartridge", "init-slot", "jemalloc", "katana-cli/explorer" ]
 
 cartridge = [ "katana-cli/cartridge" ]
-client = [ "dep:colored_json" ]
+client = [ "dep:colored_json", "dep:serde_json" ]
 init-custom-settlement-chain = [  ]
 init-slot = [  ]
 jemalloc = [  ]