feat(node): Add LocalVariables integration to capture local variables to stack frames

packages/node/src/integrations/index.ts

@@ -7,3 +7,4 @@ export { Modules } from './modules';
 export { ContextLines } from './contextlines';
 export { Context } from './context';
 export { RequestData } from './requestdata';
+export { LocalVariables } from './localvariables';