update electron to v43

electron/node_modules/app-builder-lib/out/targets/nsis/nsisValidation.d.ts

@@ -0,0 +1,18 @@
+import type { Defines } from "./Defines";
+/**
+ * Validates makensis stdout/stderr after a zero-exit run.
+ *
+ * NSIS can emit "Error:" lines on stderr and still exit 0 (e.g. disk-full
+ * scenarios where the OS silently drops writes). Also checks the
+ * "Install data: <written> / <expected> bytes" progress line for truncation.
+ */
+export declare function checkMakensisOutput(stdout: string, stderr: string): void;
+/**
+ * Verifies the generated installer is at least as large as the sum of the
+ * embedded archive(s). An installer smaller than its payload is definitively
+ * truncated regardless of the makensis exit code.
+ *
+ * Only runs when APP_64/APP_32/APP_ARM64 defines are present (i.e. normal,
+ * non-portable installers). Skipped for the intermediate uninstaller build.
+ */
+export declare function verifyInstallerSize(outFile: string, defines: Defines): Promise<void>;