Fix quickPickUserOrderedValues windows test timing out

[julieg18]

One of tests for quickPickUserOrderedValues is failing frequently with a timeout error in windows:

         quickPickUserOrderedValues
           should limit the number of values that can be selected to the max selected items:
       Error: Timeout of 6000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (d:\a\vscode-dvc\vscode-dvc\extension\dist\test\suite\vscode\quickPick.test.js)

[julieg18]

Looking at the test, I don't think there is a bug inside the test but there are a lot of commands being run in selectMultipleQuickPickItems due to needing to repeatedly loop over the items. Possibly why the test keeps hitting a timeout 🤔

I've decreased the number of quick pick items and added 2000ms to the timeout.

[codeclimate]

Code Climate has analyzed commit 82fd839 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (85% is the threshold).

This pull request will bring the total coverage in the repository to 95.0% (0.0% change).

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