fix(deps): update dependency @nextcloud/files to ^3.1.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@nextcloud/files	^3.1.0 -> ^3.1.1

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Release Notes

nextcloud-libraries/nextcloud-files (@​nextcloud/files)

v3.1.1

Compare Source

Fixed

• fix(dav): various typings and owner string cast by @​skjnldsv in https://github.com/nextcloud-libraries/nextcloud-files/pull/882
• fix(dav): remove sharing attributes from default dav fetch and change duplicate registration from error to warn by @​skjnldsv in https://github.com/nextcloud-libraries/nextcloud-files/pull/902

Changed

• Update @nextcloud/router from 2.2.1 to 3.0.0
• Update webdav from 5.3.2 to 5.4.0

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