Bump org.xmlunit:xmlunit-assertj from 2.9.1 to 2.10.0 #1898

Job	Run time
firefox-container / DetailsTabUiTest	8m 47s
chrome-container / DetailsTabUiTest	11m 57s
firefox-container / FreeStyleConfigurationUiTest	4m 16s
chrome-container / FreeStyleConfigurationUiTest	4m 12s
firefox-container / GlobalConfigurationUiTest	8m 7s
chrome-container / GlobalConfigurationUiTest	5m 1s
firefox-container / IssuesColumnUiTest	4m 50s
chrome-container / IssuesColumnUiTest	3m 54s
firefox-container / SnippetGeneratorUiTest	5m 5s
chrome-container / SnippetGeneratorUiTest	6m 3s
firefox-container / TrendChartsUiTest	3m 16s
chrome-container / TrendChartsUiTest	8m 4s
firefox-container / WarningsPluginUiTest	7m 12s
chrome-container / WarningsPluginUiTest	6m 58s
firefox-container / SmokeTests	9m 33s
chrome-container / SmokeTests	9m 53s
	1h 47m 8s

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