feat(monitoring): update the API

#### monitoring:v3
The following keys were added:
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.alignmentPeriod.description
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.alignmentPeriod.format
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.alignmentPeriod.location
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.alignmentPeriod.type
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.crossSeriesReducer.description
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.crossSeriesReducer.enum
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.crossSeriesReducer.enumDescriptions
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.crossSeriesReducer.location
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.crossSeriesReducer.type
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.groupByFields.description
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.groupByFields.location
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.groupByFields.repeated
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.groupByFields.type
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.perSeriesAligner.description
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.perSeriesAligner.enum
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.perSeriesAligner.enumDescriptions
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.perSeriesAligner.location
- resources.projects.resources.timeSeries.methods.list.parameters.secondaryAggregation.perSeriesAligner.type

The following keys were changed:
- schemas.HttpCheck.properties.body.description
- schemas.HttpCheck.properties.contentType.description
- schemas.HttpCheck.properties.contentType.enumDescriptions
- schemas.MetricDescriptor.properties.launchStage.enumDescriptions
- schemas.MetricDescriptorMetadata.properties.launchStage.enumDescriptions
- schemas.MonitoredResourceDescriptor.properties.launchStage.enumDescriptions
- schemas.MonitoringQueryLanguageCondition.description
- schemas.MonitoringQueryLanguageCondition.properties.query.description
- schemas.NotificationChannelDescriptor.properties.launchStage.enumDescriptions