v1.9.0-beta.2

Fixed

• fix: Avoid mutating the due date when calculating days @juliushaertl #4488
• fix: Pass user id along to properly check permissions in background jobs @juliushaertl #4485
• fix: Use passed userid when getting attachment folder @juliushaertl #4487
• fix: Use proper z-index for text menubar @juliushaertl #4490
• fix(dashboard): Fix undefined array index @marcelklehr #4492
• fix: Always return sorted index array to make sure a json array is the result @juliushaertl #4493
• chore(CI): Adjust testing matrix for Nextcloud 26 on stable26 @nickvergessen #4498