chore(deps): update dependency typescript to v3.9.9

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
typescript (source)	3.9.7 -> 3.9.9

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Release Notes

Microsoft/TypeScript

v3.9.9

Compare Source

This release contains a fix for an issue when language service plugins have no specified name.

v3.9.8

Compare Source

This release contains fixes for a security risk involving language service plugin loading. More details are available here.

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Configuration

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