chore(deps): update dependency @vscode/test-electron to v2.1.4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@vscode/test-electron	2.1.3 -> 2.1.4

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Release Notes

Microsoft/vscode-test

### [`v2.1.4`](https://togithub.com/Microsoft/vscode-test/blob/HEAD/CHANGELOG.md#​214--2022-06-10) [Compare Source](https://togithub.com/Microsoft/vscode-test/compare/v2.1.3...v2.1.4) - Fix uncaught error when failing to connect to the extension service

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