This test is not really functional (anymore?). It depends on some tokens
expiring - but they don't, really. This is because:
1) Before merging the RSA and HS variants earlier in this patch series,
they ran roughly 15s and 34s respectively in CI.
2) Since PostgREST takes a clock skew of up to 30 seconds into account,
there would be *at most* 4s of expiring tokens in a test run - and
*only* in the HS case, not for RSA.
Wolfgang Walther
07a9752866