SerialIOTest: UBSAN/ASAN and `DefineAttribute` /date?

[ax3l]

For b10fd69, I saw the following test failure in dev after merge of an unrelated PR (#1279) 3 days ago:

/home/runner/work/openPMD-api/openPMD-api/test/SerialIOTest.cpp:5824: FAILED:
  {Unknown expression after the reported line}
due to unexpected exception with message:
  ERROR: attribute /date has been defined and its value cannot be changed, in
  call to DefineAttribute

===============================================================================
test cases:     54 |     53 passed | 1 failed
assertions: 111212 | 111211 passed | 1 failed

-----------------------------------------------------
Suppressions used:
  count      bytes template
    240       8400 adios_inq_var
-----------------------------------------------------

I will restart the test now, but wonder if something is off in that test?