fix(linter): default options for unicorn/switch-case-braces (#12539)

related #12532

Author: Sysix

crates/oxc_linter/src/rules/unicorn/switch_case_braces.rs

@@ -23,11 +23,17 @@ fn switch_case_braces_diagnostic_unnecessary_braces(span: Span) -> OxcDiagnostic
         .with_label(span)
 }
 
-#[derive(Debug, Default, Clone)]
+#[derive(Debug, Clone)]
 pub struct SwitchCaseBraces {
     always_braces: bool,
 }
 
+impl Default for SwitchCaseBraces {
+    fn default() -> Self {
+        Self { always_braces: true }
+    }
+}
+
 declare_oxc_lint!(
     /// ### What it does
     ///