feat(sdk): Introduce `event_cache::Deduplicator` #12204

Job	Run time
Generate Crypto FFI Apple XCFramework	5m 34s
Run Complement Crypto tests / tests	10m 21s
xtask / xtask-🐧	5s
xtask / xtask-🍏	11s
matrix-rust-components-swift	8m 49s
matrix-rust-components-kotlin	6m 50s
Test UniFFI bindings generation	4m 3s
	35m 53s

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