chore(dev-deps): update dependency @firebase/rules-unit-testing to v4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@firebase/rules-unit-testing (source)	3.0.4 -> 4.0.0

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Release Notes

firebase/firebase-js-sdk (@​firebase/rules-unit-testing)

### [`v4.0.0`](https://redirect.github.com/firebase/firebase-js-sdk/blob/HEAD/packages/rules-unit-testing/CHANGELOG.md#400) [Compare Source](https://redirect.github.com/firebase/firebase-js-sdk/compare/@firebase/rules-unit-testing@3.0.4...@firebase/rules-unit-testing@4.0.0) ##### Patch Changes - [`479226bf3`](https://redirect.github.com/firebase/firebase-js-sdk/commit/479226bf3ebd99017bb12fa21440c75715658702) [#​8475](https://redirect.github.com/firebase/firebase-js-sdk/pull/8475) - Remove ES5 bundles. The minimum required ES version is now ES2017. - [`479226bf3`](https://redirect.github.com/firebase/firebase-js-sdk/commit/479226bf3ebd99017bb12fa21440c75715658702) [#​8475](https://redirect.github.com/firebase/firebase-js-sdk/pull/8475) - Removed dependency on undici and node-fetch in our node bundles, replacing them with the native fetch implementation. - Updated dependencies \[[`479226bf3`](https://redirect.github.com/firebase/firebase-js-sdk/commit/479226bf3ebd99017bb12fa21440c75715658702), [`479226bf3`](https://redirect.github.com/firebase/firebase-js-sdk/commit/479226bf3ebd99017bb12fa21440c75715658702), [`b942e9e6e`](https://redirect.github.com/firebase/firebase-js-sdk/commit/b942e9e6e22d184d21f3e452cd35122592a3a372)]: - firebase@11.0.0

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[github-actions[bot]]

size-limit report 📦

Path	Size
CommonJS: attachCustomCommands	8.49 KB (0%)
CommonJS: plugin	8.5 KB (0%)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 74.26%. Comparing base (b7ce1ac) to head (77c4592). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1381 +/- ## ======================================= Coverage 74.26% 74.26% ======================================= Files 6 6 Lines 579 579 Branches 212 212 ======================================= Hits 430 430 Misses 131 131 Partials 18 18 ```

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