Repository: flutter
Issue: Flutter "version" file in repo root is missing and being created then deleted by the tool on branches named master/main
Labels: tool,P2,team-tool

### Steps to reproduce

I'm on the latest `master` (commit ccb2b4439a) and I noticed a number of things not working as expected in VS Code. It turns out, Dart-Code thinks I'm on Flutter version 0.0.0 and is therefore disabling all functionality that requires a specific Flutter version. This seems to be because I don't have the `version` file in the repo root.

I found https://github.com/flutter/flutter/pull/133097 while searching which seems to describe the same issue, however I'm on a much newer version than that (cc @christopherfujino )

### Expected results

There should be a file named `version` in the root of the repository.

### Actual results

There is no file.

### Code sample

N/A

### Screenshots or Video

```
PS C:\Dev\Google\flutter> flutter --version
Flutter 3.19.0-13.0.pre.32 • channel master • git@github.com:DanTup/flutter.git
Framework • revision ccb2b4439a (5 hours ago) • 2024-01-30 14:59:24 +0800
Engine • revision 438e9b4d7d
Tools • Dart 3.4.0 (build 3.4.0-82.0.dev) • DevTools 2.31.0
PS C:\Dev\Google\flutter> ls

    Directory: C:\Dev\Google\flutter

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d----          30/01/2024    11:24                .github
d----          19/12/2023    12:02                .vscode
d----          19/12/2023    12:02                bin
d----          30/01/2024    11:24                dev
d----          19/12/2023    12:02                examples
d----          01/06/2023    20:01                packages
-a---          30/01/2024    11:24         187181 .ci.yaml
-a---          01/06/2023    20:01            858 .gitattributes
-a---          19/12/2023    12:02           2932 .gitignore
-a---          19/12/2023    12:02          11615 analysis_options.yaml
-a---          30/01/2024    11:24           4714 AUTHORS
-a---          19/12/2023    12:02           2939 CODE_OF_CONDUCT.md
-a---          30/01/2024    11:24            489 CODEOWNERS
-a---          30/01/2024    11:24          11619 CONTRIBUTING.md
-a---          30/01/2024    11:24           2035 dartdoc_options.yaml
-a---          01/06/2023    20:01           1731 flutter_console.bat
-a---          01/06/2023    20:01           1544 LICENSE
-a---          01/06/2023    20:01           1124 PATENT_GRANT
-a---          30/01/2024    11:24           7055 README.md
-a---          30/01/2024    11:24          27988 TESTOWNERS

PS C:\Dev\Google\flutter>
```

### Logs

_No response_

### Flutter Doctor output

```
PS C:\Dev\Google\flutter> flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[!] Flutter (Channel master, 3.19.0-13.0.pre.32, on Microsoft Windows [Version 10.0.22621.3007], locale en-GB)
    ! Warning: `dart` on your path resolves to C:\Dev\Tools\Dart\Stable\bin\dart.exe, which is not inside your current Flutter SDK checkout at
      C:\Dev\Google\flutter. Consider adding C:\Dev\Google\flutter\bin to the front of your path.
[✓] Windows Version (Installed version of Windows is version 10 or higher)
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[✓] Chrome - develop for the web
[✓] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.7.4)
[✓] Android Studio (version 2022.3)
[✓] VS Code (version 1.85.2)
[✓] VS Code (version 1.86.0-insider)
[✓] Connected device (3 available)
[✓] Network resources

! Doctor found issues in 1 category.
```