Make the clippy::implicit_clone lint trigger a warning

These seem to be reasonable lints that somewhat help clean up the code a
bit.

Author: faern

Cargo.toml

@@ -78,6 +78,7 @@ single_use_lifetimes = "warn"
 [workspace.lints.clippy]
 unused_async = "deny"
 undocumented_unsafe_blocks = "warn"
+implicit_clone = "warn"
 
 [workspace.dependencies]
 hickory-proto = "0.24.3"

test/Cargo.toml

@@ -34,6 +34,7 @@ single_use_lifetimes = "warn"
 
 [workspace.lints.clippy]
 unused_async = "deny"
+implicit_clone = "warn"
 
 [workspace.dependencies]
 futures = "0.3"