community/go: enable all setgid tests again
Apart from Test9400 there are additional tests which were disabled on Alpine and should now just pass with recent musl libc.
We are currently working on getting Alpine Linux 3.21 out. This means that merge requests that are not aimed to help with that (only affecting testing, new aports) have a lower priority at the moment. Please be patient, they will be eventually picked up.
Apart from Test9400 there are additional tests which were disabled on Alpine and should now just pass with recent musl libc.