Update gitignore (sorry)

electron/node_modules/app-builder-lib/out/util/cacheManager.d.ts

@@ -0,0 +1,19 @@
+/// <reference types="node" />
+import { Arch } from "builder-util";
+import { Hash } from "crypto";
+export interface BuildCacheInfo {
+    executableDigest: string;
+}
+export declare class BuildCacheManager {
+    private readonly executableFile;
+    static VERSION: string;
+    readonly cacheDir: string;
+    readonly cacheInfoFile: string;
+    readonly cacheFile: string;
+    cacheInfo: BuildCacheInfo | null;
+    private newDigest;
+    constructor(outDir: string, executableFile: string, arch: Arch);
+    copyIfValid(digest: string): Promise<boolean>;
+    save(): Promise<void>;
+}
+export declare function digest(hash: Hash, files: Array<string>): Promise<string>;