ci: fix pypy conditional #625

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Job	Run time
build (gcc, 3.13, 3.3)	2m 8s
build (gcc, 3.13, 3.3, test-flags-override)	1m 34s
build (gcc, 3.13, 3.3, test-debug)	1m 53s
build (gcc, 3.13, 3.3, linker-bfd)	1m 48s
build (gcc, 3.13, 3.3, linker-gold)	2m 5s
build (gcc, 3.12, 3.3)	1m 46s
build (gcc, 3.11, 3.3)	2m 14s
build (gcc, 3.10, 3.3)	1m 49s
build (gcc, 3.9, 3.3)	1m 47s
build (gcc, 3.8, 3.3)	3m 5s
build (gcc, pypy3.7, 3.3)	3m 0s
build (gcc, 3.13, 3.2)	1m 52s
build (gcc, 3.13, 3.1)	1m 57s
build (gcc, 3.13, 3.0)	1m 58s
build (gcc, 3.13, 2.7)	2m 8s
build (gcc, 3.13, 2.6)	2m 11s
build (gcc, 3.13, 2.5)	2m 10s
build (clang, 3.13, 3.3)	2m 3s
build (clang, 3.13, 3.3, test-flags-override)	2m 22s
build (clang, 3.13, 3.3, test-debug)	2m 14s
build (clang, 3.12, 3.3)	1m 41s
build (clang, 3.11, 3.3)	1m 52s
build (clang, 3.10, 3.3)	1m 57s
build (clang, 3.9, 3.3)	1m 55s
build (clang, 3.8, 3.3)	2m 1s
build (clang, pypy3.7, 3.3)	2m 21s
build (clang, 3.13, 3.2)	1m 57s
build (clang, 3.13, 3.1)	2m 7s
build (clang, 3.13, 3.0)	1m 48s
build (clang, 3.13, 2.7)	2m 38s
build (clang, 3.13, 2.6)	2m 9s
build (clang, 3.13, 2.5)	2m 8s
build (gcc, 3.13, 3.3, sanitizers)	2m 20s
	1h 8m 58s

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