Bump shared core to 7.0.3 (#228)

Author: slinkydeveloper

Cargo.lock

@@ -14,4 +14,4 @@ doc = false
 [dependencies]
 pyo3 = { version = "0.25.1", features = ["extension-module"] }
 tracing-subscriber = { version = "0.3", features = ["fmt", "env-filter"] }
-restate-sdk-shared-core = { version = "7.0.1", features = ["request_identity", "sha2_random_seed", "rust_crypto"] }
+restate-sdk-shared-core = { version = "7.0.3", features = ["request_identity", "sha2_random_seed", "rust_crypto"] }