chore(deps): update rust crate sys-mount to v3

Author: stackable-bot

Cargo.lock

@@ -41,7 +41,7 @@ stackable-operator = { git = "https://github.com/stackabletech/operator-rs.git",
   "time",
 ] }
 strum = { version = "0.25", features = ["derive"] }
-sys-mount = { version = "2.1", default-features = false }
+sys-mount = { version = "3.0", default-features = false }
 tempfile = "3.3"
 time = { version = "0.3", features = ["parsing"] }
 tokio = { version = "1.29", features = ["full"] }