strictOptionalProperties has been renamed to exactOptionalPropertyTypes

[tamuratak]

strictOptionalProperties has been renamed to exactOptionalPropertyTypes

vscode-docs/release-notes/v1_63.md

Lines 280 to 288 in f518dcb

	### Updating vscode.d.ts for strictOptionalProperties
	We've updated the typings in `vscode.d.ts` to better support TypeScript's [`strictOptionalProperties` strictness option](https://github.com/microsoft/TypeScript/pull/43947). This work included:
	* Clarifying which optional properties can be assigned `undefined`.
	* Being more consistent in how we use `?` versus `| undefined`.
	If you are using `strictOptionalProperties` with your extension, please let us know if you run into any issues with the `vscode.d.ts` typings.

• Rename strictOptionalProperties -> exactOptionalPropertyTypes and remove it from the strict family TypeScript#44626

cc: @mjbvz

[gregvanl]

@tamuratak Thanks for pointing this out! Fixed with 5c8a731