Add support for Bitcoin Core v27.2 #14

Job	Run time
Docs - stable toolchain (recent)	41s
Test - 1.63.0 toolchain (minimal)	2m 5s
Prepare	3s
Integration tests - stable toolchain (28_0)	52s
Test - 1.63.0 toolchain (recent)	2m 2s
Integration tests - stable toolchain (27_1)	42s
Test - stable toolchain (minimal)	31s
Integration tests - stable toolchain (27_0)	42s
Test - stable toolchain (recent)	31s
Integration tests - stable toolchain (26_2)	45s
Integration tests - stable toolchain (26_1)	42s
Integration tests - stable toolchain (26_0)	43s
Integration tests - stable toolchain (25_2)	1m 5s
Integration tests - stable toolchain (25_1)	45s
Integration tests - stable toolchain (25_0)	42s
Integration tests - stable toolchain (24_2)	1m 5s
Integration tests - stable toolchain (24_1)	43s
Integration tests - stable toolchain (24_0_1)	53s
Integration tests - stable toolchain (23_2)	58s
Integration tests - stable toolchain (23_1)	46s
Integration tests - stable toolchain (23_0)	1m 2s
Integration tests - stable toolchain (22_1)	1m 10s
Integration tests - stable toolchain (22_0)	55s
Integration tests - stable toolchain (0_21_2)	44s
Integration tests - stable toolchain (0_20_2)	45s
Integration tests - stable toolchain (0_19_1)	56s
Integration tests - stable toolchain (0_18_1)	1m 5s
Integration tests - stable toolchain (0_17_1)	1m 9s
Test - nightly toolchain (minimal)	40s
Docs - nightly toolchain (recent)	46s
Lint - nightly toolchain (recent)	40s
Test - nightly toolchain (recent)	36s
	27m 44s

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