feat: handle ChainEvent::Reorg in SubscriptionTask (#97) #456

Job	Run time
rust-library-base / Feature Checks	5m 58s
rust-library-base / Base Checks / Test Suite	9m 26s
rust-library-base / Base Checks / Docs	4m 33s
rust-library-base / Base Checks / Clippy	4m 7s
rust-library-base / Base Checks / Rustfmt	1m 13s
rust-library-base / Base Checks / doctest	6m 32s
	31m 49s

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