chore(deps): update dependency @vscode/test-electron to v2.3.9

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@vscode/test-electron	2.3.8 -> 2.3.9

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Release Notes

Microsoft/vscode-test (@​vscode/test-electron)

v2.3.9

• Fix archive extraction on Windows failing when run under Electron

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Configuration

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