Clippy: Doesn't block CI runs on warnings

Switched to `deny` in the `Cargo.toml` instead.

Author: ReinierMaas

Cargo.toml

@@ -12,20 +12,20 @@ members = [
 version = "0.36.0"
 
 [workspace.lints.clippy]
-cargo =  { level = "warn", priority = -1 }
+cargo = { level = "deny", priority = -1 }
 cargo_common_metadata = "allow"
 
-complexity = { level = "warn", priority = -1 }
+complexity = { level = "deny", priority = -1 }
 correctness = { level = "deny", priority = -1 }
 # nursery, new untested lints
 nursery = { level = "allow", priority = -1 }
 
-pedantic = { level = "warn", priority = -1 }
-perf = { level = "warn", priority = -1 }
+pedantic = { level = "deny", priority = -1 }
+perf = { level = "deny", priority = -1 }
 # restriction, lints that can enforce a coherent code style
 restriction = { level = "allow", priority = -1 }
-style = { level = "warn", priority = -1 }
-suspicious = { level = "warn", priority = -1 }
+style = { level = "deny", priority = -1 }
+suspicious = { level = "deny", priority = -1 }
 
 # Prevent duplicate versions of crates from being used in the workspace. If an easy fix is not
 # possible, you can add the crate to the `allowed-duplicate-crates` list in `clippy.toml`.