fixup! test: run e2e tests on pre-compiled packages

Author: jbedard

tests/legacy-cli/e2e/utils/tar.ts

@@ -19,16 +19,14 @@ import { Parse } from 'tar';
  */
 export async function extractFile(tarball: string, filePath: string): Promise<Buffer> {
   return new Promise((resolve, reject) => {
-    let chunks: Buffer[] | null = null;
-
     fs.createReadStream(tarball)
       .pipe(
         new Parse({
           strict: true,
           filter: (p) => normalize(p) === normalize(filePath),
           // TODO: @types/tar 'entry' does not have ReadEntry.on
           onentry: (entry: any) => {
-            chunks = [];
+            const chunks: Buffer[] = [];
 
             entry.on('data', (chunk: any) => chunks!.push(chunk));
             entry.on('error', reject);