Disable windows build #9646

Job	Run time
build ucm (ubuntu-20.04)	3m 56s
build ucm (macOS-13)	11m 40s
ormolu	13s
generate jit source	6s
run transcripts (ubuntu-20.04)	6h 0m 14s
run transcripts (macos-13)	6h 0m 14s
run interpreter tests (ubuntu-20.04)	1m 9s
run interpreter tests (macos-13)	1m 54s
build jit binary / build jit binary (ubuntu-20.04)	15s
build jit binary / build jit binary (macOS-13)	11s
build jit binary / build jit binary (windows-2019)	20s
test jit / test jit (ubuntu-20.04)	8s
test jit / test jit (macOS-13)	12s
	12h 20m 32s

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