feat(admob): update the API

#### admob:v1
The following keys were added:
- schemas.MediationReportSpec.properties.dimensions.items.enumDescriptions
- schemas.MediationReportSpec.properties.metrics.items.enumDescriptions
- schemas.NetworkReportSpec.properties.dimensions.items.enumDescriptions
- schemas.NetworkReportSpec.properties.metrics.items.enumDescriptions

The following keys were changed:
- description
- resources.accounts.methods.get.parameters.name.description
- resources.accounts.methods.list.description
- resources.accounts.methods.list.parameters.pageToken.description
- resources.accounts.resources.mediationReport.methods.generate.description
- resources.accounts.resources.mediationReport.methods.generate.parameters.parent.description
- resources.accounts.resources.networkReport.methods.generate.description
- resources.accounts.resources.networkReport.methods.generate.parameters.parent.description
- schemas.Date.description
- schemas.Date.properties.day.description
- schemas.Date.properties.month.description
- schemas.Date.properties.year.description
- schemas.DateRange.properties.endDate.description
- schemas.DateRange.properties.startDate.description
- schemas.GenerateMediationReportResponse.description
- schemas.GenerateMediationReportResponse.properties.footer.description
- schemas.GenerateMediationReportResponse.properties.header.description
- schemas.GenerateNetworkReportResponse.description
- schemas.GenerateNetworkReportResponse.properties.footer.description
- schemas.GenerateNetworkReportResponse.properties.header.description
- schemas.ListPublisherAccountsResponse.properties.nextPageToken.description
- schemas.LocalizationSettings.description
- schemas.LocalizationSettings.properties.currencyCode.description
- schemas.LocalizationSettings.properties.languageCode.description
- schemas.MediationReportSpec.description
- schemas.MediationReportSpec.properties.dimensions.description
- schemas.MediationReportSpec.properties.dimensions.enumDescriptions
- schemas.MediationReportSpec.properties.maxReportRows.description
- schemas.MediationReportSpec.properties.metrics.enumDescriptions
- schemas.MediationReportSpec.properties.sortConditions.description
- schemas.MediationReportSpec.properties.timeZone.description
- schemas.MediationReportSpecDimensionFilter.properties.dimension.enumDescriptions
- schemas.MediationReportSpecDimensionFilter.properties.matchesAny.description
- schemas.MediationReportSpecSortCondition.properties.dimension.enumDescriptions
- schemas.MediationReportSpecSortCondition.properties.metric.enumDescriptions
- schemas.NetworkReportSpec.description
- schemas.NetworkReportSpec.properties.dimensions.description
- schemas.NetworkReportSpec.properties.dimensions.enumDescriptions
- schemas.NetworkReportSpec.properties.maxReportRows.description
- schemas.NetworkReportSpec.properties.metrics.enumDescriptions
- schemas.NetworkReportSpec.properties.sortConditions.description
- schemas.NetworkReportSpec.properties.timeZone.description
- schemas.NetworkReportSpecDimensionFilter.properties.dimension.enumDescriptions
- schemas.NetworkReportSpecDimensionFilter.properties.matchesAny.description
- schemas.NetworkReportSpecSortCondition.properties.dimension.enumDescriptions
- schemas.NetworkReportSpecSortCondition.properties.metric.enumDescriptions
- schemas.PublisherAccount.description
- schemas.PublisherAccount.properties.currencyCode.description
- schemas.PublisherAccount.properties.name.description
- schemas.PublisherAccount.properties.publisherId.description
- schemas.PublisherAccount.properties.reportingTimeZone.description
- schemas.ReportFooter.description
- schemas.ReportFooter.properties.matchingRowCount.description
- schemas.ReportHeader.description
- schemas.ReportHeader.properties.dateRange.description
- schemas.ReportHeader.properties.localizationSettings.description
- schemas.ReportHeader.properties.reportingTimeZone.description
- schemas.ReportRow.properties.metricValues.description
- schemas.ReportRowDimensionValue.properties.displayLabel.description
- schemas.ReportRowDimensionValue.properties.value.description
- schemas.ReportRowMetricValue.properties.microsValue.description
- schemas.ReportWarning.properties.type.enumDescriptions