Add retry mechanism for pov-recovery, fix full-node pov-recovery (#2164)

* Increase delay for pov-recovery

* Update client/service/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* Comment

* FMT

* Clear waiting_recovery when block is recovered or recovery failed

* Introduce recovery queue that preserved insertion order

* Better error logs

* Decrease slot duration

* Style improvements

* Add option to use unordered queue

* Maintain cache of finalized blocks

* Wait for one relay chain slot before recovery

* Make retries testable

* fmt

* Improve docs

* Improve docs

* Simplify RecoveryQueue

* Remove unwanted changes

* Adjust to comments

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <git@kchr.de>

* Move recovery delay into the queue

* Check for finalized number

* Clean up

* Use timer

Co-authored-by: Bastian Köcher <git@kchr.de>

* Simplify implementation

* Revert "Use timer"

This reverts commit 3809eed840d3a09d54212f99486782ff80cdc1c9.

* Properly clear `to_recover` flag

---------

Co-authored-by: Bastian Köcher <git@kchr.de>

cumulus/client/pov-recovery/Cargo.toml

@@ -28,6 +28,7 @@ polkadot-primitives = { git = "https://github.com/paritytech/polkadot", branch =
 # Cumulus
 cumulus-primitives-core = { path = "../../primitives/core" }
 cumulus-relay-chain-interface = {path = "../relay-chain-interface"}
+async-trait = "0.1.64"
 
 [dev-dependencies]
 tokio = { version = "1.25.0", features = ["macros"] }