missed a spot to hardcode version

Author: suejung-sentry

packages/nextjs-webpack-plugin/src/nextjs-webpack-bundle-analysis/__tests__/__snapshots__/nextJSWebpackBundleAnalysisPlugin.test.ts.snap

@@ -5,7 +5,7 @@ exports[`webpackBundleAnalysisPlugin > when called > returns a plugin object 1`]
   "buildEnd": [Function],
   "buildStart": [Function],
   "name": "@codecov/nextjs-webpack-plugin",
-  "pluginVersion": "1.3.0",
+  "pluginVersion": "1.4.0",
   "version": "2",
   "webpack": [Function],
   "writeBundle": [Function],