build(deps-dev): bump compression-webpack-plugin

Bumps [compression-webpack-plugin](https://github.com/webpack-contrib/compression-webpack-plugin) from 6.0.2 to 6.0.3.
- [Release notes](https://github.com/webpack-contrib/compression-webpack-plugin/releases)
- [Changelog](https://github.com/webpack-contrib/compression-webpack-plugin/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/compression-webpack-plugin@v6.0.2...v6.0.3)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

unison-ui/package.json

@@ -24,7 +24,7 @@
     "babel-eslint": "^10.0.2",
     "babel-loader": "^8.0.6",
     "clean-webpack-plugin": "^3.0.0",
-    "compression-webpack-plugin": "^6.0.2",
+    "compression-webpack-plugin": "^6.0.3",
     "copy-webpack-plugin": "^6.2.0",
     "cross-env": "^7.0.0",
     "css-loader": "^4.3.0",