Add new tasks to high priority list (#3392)

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Co-authored-by: Clément Renault <[email protected]>

Author: guimachiavelli

learn/async/asynchronous_operations.mdx

@@ -115,12 +115,15 @@ When the task queue reaches its limit (about 10GiB), it will throw a `no_space_l
 
 Meilisearch considers certain tasks high-priority and always places them at the front of the queue.
 
-The following types of tasks are always processed as soon as possible:
+The following types of tasks are always processed as soon as possible in this order:
 
 1. `taskCancelation`
-2. `taskDeletion`
-3. `snapshotCreation`
-4. `dumpCreation`
+2. `upgradeDatabase`
+3. `taskDeletion`
+4. `indexCompaction`
+5. `export`
+6. `snapshotCreation`
+7. `dumpCreation`
 
 All other tasks are processed in the order they were enqueued.