Merge branch 'update-test-exclusions' into 'master'

Hide new proprty "Atomic" in tests

See merge request !301

GaudiPolicy/python/GaudiTesting/BaseTest.py

@@ -847,6 +847,7 @@ lineSkipper = LineSkipper(["//GP:",
                                         r"Property(.*)'AuditRe(start|initialize)':", # these were missing in tools
                                         r"Property(.*)'IsIOBound':",
                                         r"Property(.*)'ErrorCount(er)?':", # removed with gaudi/Gaudi!273
+                                        r"Property(.*)'Atomic':",  # added with gaudi/Gaudi!287
                                         # ignore uninteresting/obsolete messages
                                         r"Property update for OutputLevel : new value =",
                                         r"EventLoopMgr\s*DEBUG Creating OutputStream",