Repository: flutter
Issue: FontFamily in ThemeData for the whole app doesn't affect Tabs when labelStyle is added.
Labels: framework,f: material design,a: typography,has reproducible steps,P2,found in release: 3.10,found in release: 3.11,team-design,triaged-design

### Steps to reproduce

1-change app font family using theme   `ThemeData(
      brightness: Brightness.dark,
      fontFamily: "Any Font Famliy")`

### Expected results

All texts font family must be changed including Tabs, 

### Actual results

Tabs text Font Family  not changed

### Code sample

<details><summary>Code sample</summary>

```dart
[Paste your code here]
```

</details>


### Screenshots or Video

<details>
<summary>Screenshots / Video demonstration</summary>

[Upload media here]

</details>


### Logs

_No response_

### Flutter Doctor output

<details><summary>Doctor output</summary>

```console
 Flutter (Channel stable, 3.7.12, on Microsoft Windows [Version 10.0.22621.1702], locale en-US)
    • Flutter version 3.7.12 on channel stable at C:\src\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 4d9e56e694 (6 weeks ago), 2023-04-17 21:47:46 -0400
    • Engine revision 1a65d409c7
    • Dart version 2.19.6
    • DevTools version 2.20.1

[√] Windows Version (Installed version of Windows is version 10 or higher)

[√] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
    • Android SDK at C:\Users\UserName\AppData\Local\Android\sdk
    • Platform android-33, build-tools 33.0.1
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866)
    • All Android licenses accepted.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[X] Visual Studio - develop for Windows
    X Visual Studio not installed; this is necessary for Windows development.
      Download at https://visualstudio.microsoft.com/downloads/.
      Please install the "Desktop development with C++" workload, including all of its default components

[√] Android Studio (version 2021.3)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866)

[√] VS Code (version 1.78.2)
    • VS Code at C:\Users\Hussen\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.64.0

[√] Connected device (4 available)
    • SM A525F (mobile) • RZ8RC1VEPDF • android-arm64  • Android 13 (API 33)
    • Windows (desktop) • windows     • windows-x64    • Microsoft Windows [Version 10.0.22621.1702]
    • Chrome (web)      • chrome      • web-javascript • Google Chrome 113.0.5672.127
    • Edge (web)        • edge        • web-javascript • Microsoft Edge 113.0.1774.57

[√] HTTP Host Availability
    • All required HTTP hosts are available
```

</details>