Update to Node 16 and VS Code 1.61

[jpogran]

This commit updates the project to move to VS Code 1.61. It moves nodejs to 16.X, typescript to 4.5 and vsce to 2.6.

A small fix to SingleInstanceTimeout is needed until we remove this class when we use platform specific extensions.

[radeksimko]

Is there any particular reason for the differences between VS Code versions here?

• GitHub Action CI environment (1.61.2)
• package.json engines requirement (^1.61.0) - shouldn't that be ~1.61.X instead?
• @types/vscode (^1.61.0)

Aside from that (and my minor suggestion in-line) LGTM!

[jpogran]

The engines.vscode version indicates the lowest version of VS Code the extension will be offered for. So, anyone who is at or above 1.61.0 will 'see' our extension offered to them either in the Marketplace or via code --install-extension. While this respects npm version constraint system, the point is more for a line in the sand rather than something to reference in CI.

The version specified in test.yml is so we can download specific versions straight from code.visualstudio.com. VS Code has released 1.61.0, 1.61.1, and 1.61.2 for the 1.61 series. I selected the 1.61.2 as the latest version for the 1.61 series to test on. If I had selected 1.61.0, 1.61.0 would be downloaded and we wouldn't be testing on the latest 1.61 series.

The @types/vscode set to 1.61.0 was a mistake of mine. It should be set to 1.61.1, which is latest types available for that series. We could specifcy 1.61.X if you want.

[radeksimko]

Gotcha - that explanation makes sense - thank you! 👍🏻 Happy with 1.61.1 types.

[dbanck]

Great work! Just a few suggestions and a way to fix the setTimeout type error.

[dbanck]

🚀

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