chore: update dependencies

Cargo.toml

@@ -12,9 +12,9 @@ categories = ["api-bindings", "web-programming"]
 [features]
 default = []
 full = ["database", "http-client", "validation", "resilience", "i18n"]
-database = ["dep:diesel"]
+database = []
 http-client = ["dep:reqwest"]
-validation = ["dep:validator"]
+validation = []
 resilience = []
 i18n = []
 
@@ -31,15 +31,9 @@ uuid = { workspace = true, features = ["serde", "v4"] }
 toml = { workspace = true }
 tokio = { workspace = true, features = ["sync", "time"] }
 
-# Optional: Database
-diesel = { workspace = true, features = ["postgres", "uuid", "chrono", "serde_json", "r2d2"], optional = true }
-
 # Optional: HTTP Client
 reqwest = { workspace = true, features = ["json", "rustls-tls"], optional = true }
 
-# Optional: Validation
-validator = { workspace = true, optional = true }
-
 [dev-dependencies]
 tokio = { workspace = true, features = ["rt", "macros"] }