Fix kiota vscode settings dependency for task build

[fey101]

When you launch the debugger in vscode, following error is thrown

Executing task: C:\Program Files\Git\cmd\git.exe checkout **/kiota-lock.json 

error: pathspec '**/kiota-lock.json' did not match any file(s) known to git

*  The terminal process "C:\Program Files\Git\cmd\git.exe 'checkout', '**/kiota-lock.json'" terminated with exit code: 1.

The proposed changes fixes this by removing the dependency for the build task on the task ["checkout:sample:locks"] in the .vscode/tasks.json file.