fix(api): 🐛 Force text content-type header on all empty responses

Fixes a problem where the content-type would default to application/json

plugins/openid/routes/sso/:id/index.ts

@@ -201,7 +201,7 @@ export default (plugin: PluginType): void => {
                     .delete(OpenIdAccounts)
                     .where(eq(OpenIdAccounts.id, account.id));
 
-                return context.body(null, 204);
+                return context.text("", 204);
             },
         );
     });