Fix flakes in tests

lcsb.mapviewer.annotation.services.ChEMBLParserTest.testCachableInterfaceInvalidateDrug(lcsb.mapviewer.annotation.services.ChEMBLParserTest)
lcsb.mapviewer.annotation.services.ChEMBLParserTest.testCachableInterfaceInvalidateUrl(lcsb.mapviewer.annotation.services.ChEMBLParserTest)
lcsb.mapviewer.annotation.services.DrugbankHTMLParserTest.testCachableInterfaceInvalidateDrug(lcsb.mapviewer.annotation.services.DrugbankHTMLParserTest)
lcsb.mapviewer.annotation.services.DrugbankHTMLParserTest.testCachableInterfaceInvalidateUrl(lcsb.mapviewer.annotation.services.DrugbankHTMLParserTest)
lcsb.mapviewer.annotation.services.PubmedParserTest.testCachableInterface(lcsb.mapviewer.annotation.services.PubmedParserTest)
lcsb.mapviewer.annotation.services.annotators.ChebiAnnotatorTest.testCachableInterfaceById(lcsb.mapviewer.annotation.services.annotators.ChebiAnnotatorTest)
lcsb.mapviewer.annotation.services.annotators.ChebiAnnotatorTest.testCachableInterfaceByName(lcsb.mapviewer.annotation.services.annotators.ChebiAnnotatorTest)
lcsb.mapviewer.annotation.services.annotators.EnsemblAnnotatorTest.testCachableInterfaceInvalidate(lcsb.mapviewer.annotation.services.annotators.EnsemblAnnotatorTest)
lcsb.mapviewer.annotation.services.annotators.EntrezAnnotatorTest.testCachableInterfaceInvalidate(lcsb.mapviewer.annotation.services.annotators.EntrezAnnotatorTest)
lcsb.mapviewer.annotation.services.annotators.GoAnnotatorTest.testCachableInterface(lcsb.mapviewer.annotation.services.annotators.GoAnnotatorTest)
lcsb.mapviewer.annotation.services.annotators.HgncAnnotatorTest.testCachableInterfaceInvalidate(lcsb.mapviewer.annotation.services.annotators.HgncAnnotatorTest)