Release notes for Grafana 9.1.6

Auth: Trigger auth token cleanup job. (Enterprise)
DataSource: Adding possibility to hide queries from the inspector. #54892, @mckn
Inspect: Hide Actions tab when it is empty. #55272, @ryantxu
PanelMenu: Remove hide legend action as it was showing on all panel types. #54876, @torkelo
Provisioning Contact points: Support disableResolveMessage via YAML. #54122, @mmusenbr
PublicDashboards: Support subpaths when generating pubdash url. #55204, @owensmallwood

Alerting: Fix legacy migration crash when rule name is too long. #55053, @alexweav
Alerting: Fix send resolved notifications. #54793, @grobinson-grafana
Azure Monitor: Fix migration issue with MetricDefinitionsQuery template variable query types. #55262, @yaelleC
Browse: Hide dashboard actions if user does not have enough permission. #55218, @lpskdl
ElasticSearch: Fix dispatching queries at a wrong time. #55225, @svennergr
Panel: Disable legends when showLegend is false prior to schema v37. #55126, @ivanortegaalba
Prometheus: Fix metadata requests for browser access mode. #55403, @itsmylife
Search: Avoid requesting all dashboards when in Folder View. #55169, @JoaoSilvaGrafana
TablePanel/StatPanel: Fix values not being visible when background transparent. #55092, @mdvictor