CI: make clippy check cfg(test) code, tests & examples

.github/workflows/ci.yml

@@ -49,4 +49,4 @@ jobs:
         run: cargo fmt --all -- --check
 
       - name: Lint code
-        run: cargo clippy --workspace -- -D warnings
+        run: cargo clippy --workspace --all-targets -- -D warnings

packages/dns-test/src/container/network.rs

@@ -124,11 +124,7 @@ mod tests {
         let output = command.output().expect("Failed to get output");
         let stdout = String::from_utf8_lossy(&output.stdout);
 
-        stdout
-            .trim()
-            .lines()
-            .find(|line| line == &network_name)
-            .is_some()
+        stdout.trim().lines().any(|line| line == network_name)
     }
 
     #[test]