fix(sign): update varname [skip ci]

patches/osx/fix-codesign.patch

@@ -4,7 +4,7 @@ index f5913b7..100b950 100644
 +++ b/build/darwin/sign.js
 @@ -53,5 +53,7 @@ async function main(buildDir) {
          ignore: (filePath) => {
-+						const ext = path.extname(filePath);
++						const ext = path_1.extname(filePath);
              return filePath.includes(gpuHelperAppName) ||
                  filePath.includes(rendererHelperAppName) ||
 -                filePath.includes(pluginHelperAppName);