fix(rc): Add missing class in RemoteConfig Namespace

[CodingAleCR]

Just added a class that was missing from the Remote Config Namespace.

RELEASE NOTE: Added missing type definition for ListVersionsOptions.

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[CodingAleCR]

@googlebot I signed it!

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[lahirumaramba]

Thank you @CodingAleCR for submitting this change!

[lahirumaramba]

LGTM!

[lahirumaramba]

Thank you, @CodingAleCR! This fix is now available in v9.1.1

[CodingAleCR]

Thanks to you for the overview 🎉🙌🏼