ci: apply `zizmor` security audit #6539

Job	Run time
prepare	5s
Check no_std	16s
Check WASM	1m 36s
Build & Test Examples (example_cli)	53s
Build and test (1.83.0, true, --no-default-features --features miniscript/no-std)	1m 22s
Build & Test Examples (example_bitcoind_rpc_polling)	52s
clippy_check	24s
Build and test (1.83.0, true, --all-features)	3m 36s
Build & Test Examples (example_electrum)	47s
Rust fmt	14s
Build and test (1.63.0, --no-default-features --features miniscript/no-std)	1m 48s
Build & Test Examples (example_esplora)	51s
Build and test (1.63.0, --all-features)	4m 31s
Build & Test Examples (example_wallet_electrum)	53s
Build & Test Examples (example_wallet_esplora_async)	1m 25s
Build & Test Examples (example_wallet_esplora_blocking)	53s
Build & Test Examples (example_wallet_rpc)	28s
	20m 54s

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