Move openEuler job to experimental pipeline

OpenEuler job fails 100% of the time. As discussed in QA meeting,
we agreed to move OpenEuler job to experimental pipeline.
- https://meetings.opendev.org/meetings/qa/2022/qa.2022-03-22-15.00.log.html#l-76

Once it is fixed, we can think of adding back to regular pipeline.

Change-Id: I831889a09fabe5bed5522d17e352ec8009eac321
1 file changed