fix missing tokio dep (#165)

Author: valerio-iachini

disintegrate-postgres/Cargo.toml

@@ -10,7 +10,7 @@ readme.workspace = true
 
 [features]
 default = []
-listener = ["dep:tokio", "dep:tokio-util"]
+listener = ["dep:tokio-util"]
 
 [dependencies]
 disintegrate = { version = "2.0.0", path = "../disintegrate" }
@@ -23,7 +23,7 @@ async-trait = "0.1.80"
 futures = "0.3.30"
 async-stream = "0.3.5"
 thiserror = "2.0.11"
-tokio = {version = "1.43.0", features = ["macros"], optional = true}
+tokio = {version = "1.43.0", features = ["macros"]}
 tokio-util = {version = "0.7.13", optional = true}
 uuid = { version = "1.11.0", features = ["v3"] }
 md-5 = "0.10.6"