create serde_deprecated feature flag

AHaliq · AHaliq · commit 490efbab81fa · 2025-09-01T12:17:56.000+02:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -52,3 +52,6 @@ tokio-test = { version = "0.4" }
 tonic = {version = "0.12.0", features = ["tls", "tls-roots"]} # Use system trust roots.
 tracing-subscriber = "0.3"
 sqlite = "0.33"
+
+[features]
+serde_deprecated = []
