chore(deps): update dependency @vscode/vsce to v2.28.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@vscode/vsce (source)	2.27.0 -> 2.28.0

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Release Notes

Microsoft/vsce (@​vscode/vsce)

### [`v2.28.0`](https://togithub.com/microsoft/vscode-vsce/releases/tag/v2.28.0) [Compare Source](https://togithub.com/Microsoft/vsce/compare/v2.27.0...v2.28.0) #### Changes: ##### Feature Requests: - [#​993](https://togithub.com/Microsoft/vsce/issues/993): Support signing related features ##### Others: - [#​1003](https://togithub.com/Microsoft/vsce/issues/1003): Update Dockerfile to use node:18-alpine - [#​997](https://togithub.com/Microsoft/vsce/issues/997): Dockerfile is out of date with respect to system requirements - [#​1002](https://togithub.com/Microsoft/vsce/issues/1002): fix generate-manifest - [#​1001](https://togithub.com/Microsoft/vsce/issues/1001): Bump braces from 3.0.2 to 3.0.3 - [#​998](https://togithub.com/Microsoft/vsce/issues/998): Bump [@​azure/identity](https://togithub.com/azure/identity) from 4.1.0 to 4.2.1 - [#​994](https://togithub.com/Microsoft/vsce/issues/994): Support signing related features This list of changes was [auto generated](https://dev.azure.com/monacotools/Monaco/\_build/results?buildId=279200\&view=logs).

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