Update @wasm-tool/wasm-pack-plugin requirement from 0.2.1 to 0.2.2

Updates the requirements on [@wasm-tool/wasm-pack-plugin](https://github.com/wasm-tool/wasm-pack-plugin) to permit the latest version.
- [Release notes](https://github.com/wasm-tool/wasm-pack-plugin/releases)
- [Commits](https://github.com/wasm-tool/wasm-pack-plugin/commits)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -4,7 +4,7 @@
     "serve": "webpack-dev-server -p"
   },
   "devDependencies": {
-    "@wasm-tool/wasm-pack-plugin": "0.2.1",
+    "@wasm-tool/wasm-pack-plugin": "0.2.2",
     "text-encoding": "^0.7.0",
     "html-webpack-plugin": "^3.2.0",
     "webpack": "^4.11.1",