chore(deps): update rust crate roxmltree to v0.21.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
roxmltree	dependencies	patch	0.21.0 -> 0.21.1

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Release Notes

RazrFalcon/roxmltree (roxmltree)

v0.21.1

Compare Source

Fixed

• Remove implict 'static lifetime bound on EntityResolver dyn trait type alias.
• Upgrade EntityResolver dyn trait type alias from FnMut to Fn to resolve lifetime issues.

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