Fail to execute "Build Image..." command in windows container

[v-ruizh]

OS: Win 10
Build Version: 20230421.3
Regression: Previous Release

Repro Steps:

1. Switch Docker Desktop to windows containers.
2. Open a .NET 8 MVC project in VS Code and add Docker Files to this project with Windows OS.
3. Right click the Dockerfile in this project and execute "Build Image..." command.
4. Check whether succeeds to execute "Build Image..." command or not.

Expect:
Succeed to execute "Build Image..." command.

Actual:
Fail to execute "Build Image..." command with an error.

More Info:

1. The docker-build task shows as below, there is an incorrect platform definition in task.json. Remove the platform line, succeed to execute "Build Image..." command.
   
2. Succeed to debug this project.
3. This issue also reproduces on the previous released 1.25.0.
4. This issue does not reproduce on the previous released 1.24.0.

[alexyaang]

Looks like it has something to do with the platform flag support here #3874

[alexyaang]

After discussing with @danegsta, it seems like the best temporary solution is to remove this line so the platform is not hard coded.

vscode-docker/src/tasks/netcore/NetCoreTaskHelper.ts

Line 77 in 4dcf9c6

platform: 'linux/amd64',

However, in the next iteration, we should set the platform flag based on the local architecture of the computer (for release only) and the OS of the container chosen during wizard steps

[bwateratmsft]

We should get this fixed ASAP since it will affect scaffolding.

[alexyaang]

The fix has now been released in Docker extension version 1.26.0