ci: automated update to rustc 1.84.0 #6636

Job	Run time
prepare	3s
Check no_std	48s
Build and test (1.84.0, true, --no-default-features --features miniscript/no-std)	2m 45s
Build & Test Examples (example_cli)	46s
Build and test (1.84.0, true, --all-features)	4m 21s
Build & Test Examples (example_bitcoind_rpc_polling)	45s
Check WASM	1m 19s
Build and test (1.63.0, --no-default-features --features miniscript/no-std)	4m 29s
Build & Test Examples (example_electrum)	1m 19s
Build and test (1.63.0, --all-features)	6m 10s
Build & Test Examples (example_esplora)	1m 16s
clippy_check	1m 9s
Build & Test Examples (example_wallet_electrum)	57s
Build & Test Examples (example_wallet_esplora_async)	1m 3s
Rust fmt	15s
Build & Test Examples (example_wallet_esplora_blocking)	58s
Build & Test Examples (example_wallet_rpc)	32s
	28m 55s

Provide feedback