Bump firebase_core from 4.1.0 to 4.2.0 in /dashboard (#4866)

Bumps [firebase_core](https://github.com/firebase/flutterfire/tree/main/packages/firebase_core) from 4.1.0 to 4.2.0.
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/firebase/flutterfire/commit/bdd380f1f5c5fe71a1846ddb44cdd5559952580a"><code>bdd380f</code></a> chore(release): publish packages</li>
<li><a href="https://github.com/firebase/flutterfire/commit/3edfc18d94c82fa81740fe61d075a09195aa9610"><code>3edfc18</code></a> feat: bump Android SDK to version 34.4.0 (<a href="https://github.com/firebase/flutterfire/tree/main/packages/firebase_core/issues/17786">#17786</a>)</li>
<li><a href="https://github.com/firebase/flutterfire/commit/51ed3fbbc2eecf41850db604e7bd145fe0db130c"><code>51ed3fb</code></a> feat: bump Firebase iOS SDK to 12.4.0 (<a href="https://github.com/firebase/flutterfire/tree/main/packages/firebase_core/issues/17779">#17779</a>)</li>
<li><a href="https://github.com/firebase/flutterfire/commit/09d03aac8ced6f7f9211c24f40b57eb992f2996d"><code>09d03aa</code></a> fix: a bug with the <code>demoProjectId</code> arg to <code>Firebase.initializeApp()</code> (<a href="https://github.com/firebase/flutterfire/tree/main/packages/firebase_core/issues/17703">#17703</a>)</li>
<li><a href="https://github.com/firebase/flutterfire/commit/007b2b366f49263660e946a5a631e6919fc48eac"><code>007b2b3</code></a> feat: bump Firebase JS SDK to 12.3.0 (<a href="https://github.com/firebase/flutterfire/tree/main/packages/firebase_core/issues/17743">#17743</a>)</li>
<li><a href="https://github.com/firebase/flutterfire/commit/063df8743fbccd0e80d6220e714a74984c93b40c"><code>063df87</code></a> chore(release): publish packages (<a href="https://github.com/firebase/flutterfire/tree/main/packages/firebase_core/issues/17734">#17734</a>)</li>
<li><a href="https://github.com/firebase/flutterfire/commit/0b6b13d0e0c0c45386eadb0ceef55e895a8d357b"><code>0b6b13d</code></a> docs(firebase_core): correct androidClientId docs (was incorrectly labeled iO...</li>
<li><a href="https://github.com/firebase/flutterfire/commit/4e802343dbc5f848a3555e87983e5b83bf78f1d4"><code>4e80234</code></a> chore(release): publish packages (<a href="https://github.com/firebase/flutterfire/tree/main/packages/firebase_core/issues/17681">#17681</a>)</li>
<li>See full diff in <a href="https://github.com/firebase/flutterfire/commits/firebase_core-v4.2.0/packages/firebase_core">compare view</a></li>
</ul>
</details>
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Author: dependabot[bot]

dashboard/pubspec.yaml

@@ -15,7 +15,7 @@ dependencies:
     path: ../packages/cocoon_common
   collection: any # Match Flutter SDK
   firebase_auth: ^6.0.0
-  firebase_core: 4.1.0 # Rolled by dependabot
+  firebase_core: 4.2.0 # Rolled by dependabot
   firebase_crashlytics: 5.0.1 # Rolled by dependabot
   flutter:
     sdk: flutter