disable pairs except for (0,1) #858

Job	Run time
bld (linux_release_64, ubuntu-20.04, -release_64, -asm)	4m 49s
bld (linux_debug_64, ubuntu-20.04, -debug_64)	3m 41s
bld (mac_release_64, macos-13, -release_64, -asm)	2m 50s
bld (mac_debug_64, macos-13, -debug_64)	1m 26s
bld (mac_release_arm, macos-14, -release_arm, -asm)	45s
bld (mac_debug_arm, macos-14, -debug_arm)	25s
bld (win_release_64, windows-2022, -release_64)	1m 33s
bld (win_debug_64, windows-2022, -debug_64)	1m 17s
testC (linux_release_64, ubuntu-latest, -release_64, -existing_release_64, -valgrind)	6m 42s
testC (linux_debug_64, ubuntu-latest, -debug_64, -existing_debug_64, -valgrind)	6m 58s
testC (linux_release_32, ubuntu-latest, -release_32, -valgrind)	1m 51s
testC (linux_debug_32, ubuntu-latest, -debug_32, -valgrind)	1m 52s
	34m 9s

Provide feedback