Update `flutter_rust_bridge` to `2.7.0` #2239

Job	Run time
Cargo Clippy	1m 39s
Test bindings	5m 49s
Check SDK as Rust dependency in fresh project	3m 0s
Cargo Build	2m 39s
Check Dart/Flutter bindings	17m 46s
Cargo Format	5s
Check notification plugin	10m 12s
Check react native bindings	1m 2s
Test sdk-core	2m 15s
	44m 27s

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