I-build tests for macOS fail to collect results

[HannesWell]

After the upgrade to the new macOS agents in the RelEng Jenkins instance via

• [I/Y-Tests] Update to new macOS computers in RelEng Jenkins #3739

... the I-build tests for macOS fail to transfer the test results:

+ ssh genie.releng@projects-storage.eclipse.org mkdir -p /home/data/httpd/download.eclipse.org/eclipse/downloads/drops4/I20260403-1800/testresults
Host key verification failed.

This has already been reported at eclipsefdn/helpdesk/6621#note_6798587.

[HannesWell]

This is now fixed via https://gitlab.eclipse.org/eclipsefdn/helpdesk/-/issues/6621#note_6863754 and the tests on mac are now executed properly and their results are completely collected.