fix(deps): update dependency riot to v9.4.1

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This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
riot (source)	9.2.2 -> 9.4.1

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Release Notes

riot/riot (riot)

v9.4.1

Compare Source

• Fix unmount DOM rendering in components without template https://github.com/riot/riot/issues/3025

v9.4.0

Compare Source

• Add experimental support for ref attributes https://github.com/riot/riot/issues/3015

v9.3.0

Compare Source

• Update the compiler and dom bindings to support slot fallback bindings https://github.com/riot/riot/issues/3014

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