test(e2e): Use jest snapshotting for E2E tests (#124)

Author: Luca Forstner

packages/e2e-tests/scenarios/basic-upload/__snapshots__/basic-upload.test.ts.snap

@@ -1,14 +1,13 @@
 import { pluginConfig } from "./config";
 import { BUNDLERS } from "../../utils/bundlers";
-import { getReferenceFiles, getSentryReleaseFiles } from "../../utils/releases";
+import { getSentryReleaseFiles } from "../../utils/releases";
 
 describe("Simple Sourcemaps Upload (one string include + default options)", () => {
   it.each(BUNDLERS)("uploads the correct files using %s", async (bundler) => {
     const release = `${pluginConfig.release || ""}-${bundler}`;
 
     const sentryFiles = await getSentryReleaseFiles(release);
-    const refFiles = getReferenceFiles(bundler, __dirname);
 
-    expect(sentryFiles).toMatchObject(refFiles);
+    expect(sentryFiles).toMatchSnapshot();
   });
 });