chore(deps): update dependency karma-webpack to v5 (#1158)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [karma-webpack](https://togithub.com/webpack-contrib/karma-webpack) | [`^4.0.2` -> `^5.0.0`](https://renovatebot.com/diffs/npm/karma-webpack/4.0.2/5.0.0) | [![age](https://badges.renovateapi.com/packages/npm/karma-webpack/5.0.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/npm/karma-webpack/5.0.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/npm/karma-webpack/5.0.0/compatibility-slim/4.0.2)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/npm/karma-webpack/5.0.0/confidence-slim/4.0.2)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>webpack-contrib/karma-webpack</summary>

### [`v5.0.0`](https://togithub.com/webpack-contrib/karma-webpack/blob/HEAD/CHANGELOG.md#&#8203;500-httpsgithubcomwebpack-contribkarma-webpackcomparev500-alpha6v500-2021-02-02)

[Compare Source](https://togithub.com/webpack-contrib/karma-webpack/compare/v4.0.2...v5.0.0)

No changes, just a new stable release.

</details>

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### Configuration

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package.json

@@ -58,7 +58,7 @@
     "karma-mocha": "^2.0.0",
     "karma-remap-coverage": "^0.1.5",
     "karma-sourcemap-loader": "^0.3.7",
-    "karma-webpack": "^4.0.2",
+    "karma-webpack": "^5.0.0",
     "linkinator": "^2.0.0",
     "mkdirp": "^1.0.0",
     "mocha": "^9.0.0",