Merge bitcoindevkit/bdk#1978: ci: automated update to rustc 1.87.0 #1

Job	Run time
prepare	4s
Rust fmt	13s
Build & Test (1.63.0, --no-default-features --features miniscript/no-std,bdk_chain/hashbrown)	4m 22s
Check WASM	2m 41s
Build & Test (1.87.0, true, --all-features)	3m 34s
Check no_std	39s
Build & Test (1.87.0, true, --no-default-features --features miniscript/no-std,bdk_chain/hashbrown)	2m 7s
Build & Test (1.63.0, --all-features)	5m 31s
Build & Test (1.75.0, --no-default-features --features miniscript/no-std,bdk_chain/hashbrown)	2m 16s
Build & Test Examples (example_esplora)	1m 1s
Build & Test Examples (example_cli)	1m 8s
Build & Test (1.75.0, --all-features)	3m 59s
Build & Test Examples (example_electrum)	1m 0s
Rust clippy	1m 27s
Build & Test Examples (example_bitcoind_rpc_polling)	45s
	30m 47s

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