Release notes for Grafana 9.1.2

AdHoc variable: Correctly preselect datasource when provisioning. #54088, @dprokop
AzureMonitor: Added ARG query function for template variables. #53059, @yaelleC
Dashboard save: Persist details message when navigating through dashboard save drawer’s tabs. #54084, @vbeskrovnov
Dashboards: Correctly migrate mixed data source targets. #54152, @dprokop
Elasticsearch: Use millisecond intervals for alerting. #54157, @gabor
Elasticsearch: Use millisecond intervals in frontend. #54202, @gabor
Geomap: Local color range. #54348, @adela-almasan
Plugins Catalog: Use appSubUrl to generate plugins catalog urls. #54426, @academo
Rendering: Add support for renderer token. #54425, @joanlopez

Alerting: Fix saving of screenshots uploaded with a signed url. #53933, @VDVsx
AngularPanels: Fixing changing angular panel options not taking having affect when coming back from panel edit. #54087, @torkelo
Explore: Improve a11y of query row collapse button. #53827, @L-M-K-B
Geomap: Fix tooltip display. #54245, @adela-almasan
QueryEditorRow: Filter data on mount. #54260, @asimpson
Search: Show all dashboards in the folder view. #54163, @ryantxu
Tracing: Fix the event attributes in opentelemetry tracing. #54117, @ying-jeanne