Avoid a duplicate block request when syncing from a fork (#11094)

* Separate queueing blocks for import from removal

* Add regression tests

* Remove unnecessary log

* Clear queued blocks when processed

* Move check out of match block

* Track queued block ranges

* Update client/network/sync/src/blocks.rs

* Update client/network/sync/src/blocks.rs

* Update client/network/sync/src/blocks.rs

* Update client/network/sync/src/blocks.rs

* FMT

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Bastian Köcher <info@kchr.de>