Fix webpack env variable settings (#7557)

Author: hsubox76

config/webpack.test.js

@@ -115,9 +115,9 @@ module.exports = {
       );
     }),
     new NodePolyfillPlugin(),
-    new webpack.EnvironmentPlugin([
-      'RTDB_EMULATOR_PORT',
-      'RTDB_EMULATOR_NAMESPACE'
-    ])
+    new webpack.EnvironmentPlugin({
+      'RTDB_EMULATOR_PORT': false,
+      'RTDB_EMULATOR_NAMESPACE': false
+    })
   ]
 };

integration/firestore/package.json

@@ -32,6 +32,6 @@
     "ts-loader": "8.4.0",
     "typescript": "4.2.2",
     "webpack": "5.76.0",
-    "webpack-stream": "6.1.2"
+    "webpack-stream": "7.0.0"
   }
 }