fix(deps): update dependency @nextcloud/auth to ^2.4.0 (stable28)

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@nextcloud/auth	^2.3.0 -> ^2.4.0

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Release Notes

nextcloud/nextcloud-auth (@​nextcloud/auth)

v2.4.0

Compare Source

Added

• feat: Add CSP nonce handling (getCSPNonce)
• feat: add guest nickname handling

Changed

• Add SPDX headers
• docs: Fix link to online docs
• test: Add missing tests for request token
• chore(deps): Bump @​nextcloud/event-bus to 3.3.1
• Updated development dependencies

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