webpack-env: Fix missing mode argument in require.context

types/webpack-env/index.d.ts

@@ -32,7 +32,7 @@ declare namespace __WebpackModuleApi {
          * This creates a chunk. The chunk can be named. If a chunk with this name already exists, the dependencies are merged into that chunk and that chunk is used.
          */
         ensure(paths: string[], callback: (require: NodeRequire) => void, errorCallback?: (error: any) => void, chunkName?: string): void;
-        context(path: string, deep?: boolean, filter?: RegExp): RequireContext;
+        context(path: string, deep?: boolean, filter?: RegExp, mode?: string): RequireContext;
         /**
          * Returns the module id of a dependency. The call is sync. No request to the server is fired. The compiler ensures that the dependency is available.
          *