Release notes for Grafana 8.3.6

Cloud Monitoring: Reduce request size when listing labels. #44365, @mtanda
Explore: Show scalar data result in a table instead of graph. #44362, @tharun208
Snapshots: Updates the default external snapshot server URL. #44563, @DanCech
Table: Makes footer not overlap table content. #44210, @dprokop
Tempo: Add request histogram to service graph datalink. #44671, @connorlindsey
Tempo: Add time range to tempo search query behind a feature flag. #43811, @connorlindsey
Tempo: Auto-clear results when changing query type. #44390, @connorlindsey
Tempo: Display start time in search results as relative time. #44568, @tharun208

CloudMonitoring: Fix resource labels in query editor. #44550, @iwysiu
Cursor sync: Apply the settings without saving the dashboard. #44270, @dprokop
LibraryPanels: Fix for Error while cleaning library panels. #45033, @hugohaggmark
Logs Panel: fix timestamp parsing for string dates without timezone. #44664, @Elfo404
Prometheus: Fix some of the alerting queries that use reduce/math operation. #44380, @ivanahuckova
TablePanel: Fix ad-hoc variables not working on default datasources. #44314, @joshhunt
Text Panel: Fix alignment of elements. #44313, @ashharrison90
Variables: Fix for constant variables in self referencing links. #44631, @hugohaggmark