Create helper function to avoid code duplication for upgrade scenarios

[deepakpunia-suse]

Create helper function to avoid code duplication for upgrade scenarios

	if loggingChart.IsAlreadyInstalled {
			e2e.Logf("Logging chart is already installed in project: %v", exampleAppProjectName)
			e2e.Logf("Retrieved logging chart version")
			LoggingVersionChartList, err := clientWithSession.Catalog.GetListChartVersions(charts.RancherLoggingName, catalog.RancherChartRepo)
			Expect(err).NotTo(HaveOccurred())
			e2e.Logf("Chart List: %v", LoggingVersionChartList)
			if len(LoggingVersionChartList) <= 1 {
				Skip("No newer versions found for the logging chart to perform the upgrade")
			}
			latestLoggingVersion := LoggingVersionChartList[0]