ci: allow unstable nightly lints

Author: sebastianst

Cargo.toml

@@ -51,7 +51,9 @@ incremental = false
 unreachable_pub = "deny"
 
 [workspace.lints.clippy]
+double_must_use = "allow"
 redundant_clone = "warn"
+redundant_field_names = "allow"
 unused_async = "warn"
 
 [workspace.dependencies]