Use new "enable" CIBW option #154

Job	Run time
Build ijson and run unit tests (ubuntu-latest, 3.7)	48s
Build ijson and run unit tests (ubuntu-latest, 3.8)	19s
Build ijson and run unit tests (ubuntu-latest, 3.9)	24s
Build ijson and run unit tests (ubuntu-latest, 3.10)	22s
Build ijson and run unit tests (ubuntu-latest, 3.11)	29s
Build ijson and run unit tests (ubuntu-latest, 3.12)	21s
Build ijson and run unit tests (ubuntu-latest, 3.13-dev)	51s
Build ijson and run unit tests (windows-2019, 3.7)	1m 4s
Build ijson and run unit tests (windows-2019, 3.8)	1m 6s
Build ijson and run unit tests (windows-2019, 3.9)	1m 26s
Build ijson and run unit tests (windows-2019, 3.10)	51s
Build ijson and run unit tests (windows-2019, 3.11)	56s
Build ijson and run unit tests (windows-2019, 3.12)	45s
Build ijson and run unit tests (windows-2019, 3.13-dev)	2m 41s
Build ijson and run unit tests (macos-12, 3.7)	28s
Build ijson and run unit tests (macos-12, 3.8)	26s
Build ijson and run unit tests (macos-12, 3.9)	25s
Build ijson and run unit tests (macos-12, 3.10)	27s
Build ijson and run unit tests (macos-12, 3.11)	26s
Build ijson and run unit tests (macos-12, 3.12)	30s
Build ijson and run unit tests (macos-12, 3.13-dev)	1m 2s
Build ijson and run unit tests (ubuntu-latest, pypy3.10)	28s
	16m 35s

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