set workspace resolver to 2 and use workspace deps

mpris2/Cargo.toml

@@ -6,11 +6,11 @@ edition = "2021"
 license = "MPL-2.0"
 
 [dependencies]
-serde = { version = "1.0", features = ["derive"] }
-thiserror = "1.0"
-time = { version = "0.3", features = ["parsing"] }
-zbus = "3.8.0"
-zvariant = "3.10"
+serde.workspace = true
+thiserror.workspace = true
+time.workspace = true
+zbus.workspace = true
+zvariant.workspace = true
 
 [dev-dependencies]
 miette = { version = "4.3", features = ["fancy"] }