Fix CI by using new JUnit output argument for IPM

[isc-pbarton]

Some problem with IPM 0.10.7 where the JUnit test output is not being created. I will log an IPM issue as well and we can go back to latest if that is fixed
Edit: gone back to latest, fixed by using the new -output-file argument

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 49.00%. Comparing base (89d17e3) to head (9d1367a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #976   +/-   ##
=======================================
  Coverage   49.00%   49.00%           
=======================================
  Files          23       23           
  Lines        3304     3304           
=======================================
  Hits         1619     1619           
  Misses       1685     1685           

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[isc-pbarton]

IPM bug report here: intersystems/ipm#1196