Merge rust-bitcoin/rust-bitcoin#4668: Inline `script_pubkey` extensio… #2157

Job	Run time
Test - stable toolchain (recent)	15m 10s
Prepare	4s
Test - stable toolchain (minimal)	14m 47s
Docs - stable toolchain (recent)	1m 17s
Test - MSRV toolchain (minimal)	25m 48s
Test - MSRV toolchain (recent)	26m 12s
Kani codegen - stable toolchain	1m 5s
Test 32-bit version	1m 2s
WASM - stable toolchain	1m 43s
Cross test - stable toolchain	1m 39s
Lint - nightly toolchain (recent)	55s
Test - nightly toolchain (recent)	12m 32s
Test - nightly toolchain (minimal)	12m 34s
Docs - nightly toolchain (recent)	1m 13s
Embedded - nightly toolchain	1m 12s
Bench - nightly toolchain (recent)	2m 9s
ASAN - nightly toolchain (recent)	38s
	2h 0m 0s

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