Update nightly toolchain pin #106

Job	Run time
Docs - stable toolchain (recent)	26s
Test - 1.63.0 toolchain (minimal)	3m 3s
Prepare	8s
Test - 1.63.0 toolchain (recent)	3m 8s
Integration tests - stable toolchain (27_1)	1m 5s
Integration tests - stable toolchain (27_0)	52s
Test - stable toolchain (minimal)	25s
Integration tests - stable toolchain (26_2)	58s
Test - stable toolchain (recent)	21s
Integration tests - stable toolchain (26_1)	46s
Integration tests - stable toolchain (26_0)	1m 19s
Integration tests - stable toolchain (25_2)	58s
Integration tests - stable toolchain (25_1)	47s
Integration tests - stable toolchain (25_0)	56s
Integration tests - stable toolchain (24_2)	1m 4s
Integration tests - stable toolchain (24_1)	50s
Integration tests - stable toolchain (24_0_1)	45s
Integration tests - stable toolchain (23_2)	46s
Integration tests - stable toolchain (23_1)	1m 2s
Integration tests - stable toolchain (23_0)	1m 5s
Integration tests - stable toolchain (22_1)	46s
Integration tests - stable toolchain (22_0)	52s
Integration tests - stable toolchain (0_21_2)	1m 2s
Integration tests - stable toolchain (0_20_2)	53s
Integration tests - stable toolchain (0_19_1)	1m 8s
Integration tests - stable toolchain (0_18_1)	50s
Integration tests - stable toolchain (0_17_1)	58s
Lint - nightly toolchain (recent)	28s
Docs - nightly toolchain (recent)	31s
Test - nightly toolchain (minimal)	29s
Test - nightly toolchain (recent)	29s
	29m 10s

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