fix(deps): update dependency @nextcloud/files to ^3.8.0 (main)

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@nextcloud/files	^3.1.1 -> ^3.8.0

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[juliusknorr]

│ ✖ tables-table.cy.js 00:43 5 4 1 - - │ │ ✖ tables-import.cy.js 00:21 2 1 1 - - │