UpdraftPlus Premium 2.24.11.26

FIX: Backblaze infinite loop when listing on buckets with huge numbers of objects
TWEAK: Minor improvements to the organisation of the S3-provider classes (abstract per-backend logic more cleanly)
TWEAK: Add --no-tablespaces switch to mysqldump invocation (required on MySQL 8.0+)

* FIX: Revert changing of Amazon S3 authentication error handling in 1.16.55, which broke support of S3-compatible providers
* TWEAK: Remove some unnnecessary methods from the UpdraftPlus_S3 class

FIX: Incorrect final table name being used during an atomic restore when restoring using a different table prefix
FIX: Fix variable re-use issue in Backblaze multi-delete code which halted deletion
TWEAK: Prevent unnecessary logging when testing data for serialization on PHP 8.0 during migration
TWEAK: Update jsTree library to version 3.3.12-rc0 to work around deprecated jQuery functions
TWEAK: Add an extra check for whether it looks reasonable to reduce the resumption time, increasing efficiency
TWEAK: On the posts table, detect over-sized rows in advance, and fetch them one at a time.