Update markdown-it to >=13.0.2

[brianpmccullough]

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Expected / Desired Behavior / Question

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Update markdown-it package dependency to a more recent version (>= 13.0.2) to avoid vulnerability found in currently referenced version.
https://github.com/pnp/sp-dev-fx-controls-react/blob/873aa00689eaeba8c2dc85c25c5bdcb6b03f3f00/package.json#L75C6-L75C17
https://security.snyk.io/vuln/SNYK-JS-MARKDOWNIT-6483324

Observed Behavior

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