Fix RebaseCustom for TK2 gates #4222

Job	Run time
Check tket library version	15s
Check documentation build	1m 7s
Build and test (tket) (windows-2022)	37m 9s
Build and test (tket) (ubuntu-22.04)	1m 52s
Build and test (tket) (macos-12)	2m 43s
Check C++ code formatting	57s
Build and test pytket (ubuntu)	14m 5s
Build and test pytket (macos)	13m 7s
Build and test pytket (windows)	37m 8s
Build and test tket (macos-arm64)	56s
Build and test (tket)	0s
Build and test (tket)	0s
Build and test pytket (macos-arm64)	3m 13s
Check pytket line and branch coverage	6s
Publish pytket coverage	0s
	1h 52m 38s

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