This update for grafana fixes the following issues:

grafana was updated to version 7.1.5:

* Features / Enhancements

- Stats: Stop counting the same user multiple times.
- Field overrides: Filter by field name using regex.
- AzureMonitor: map more units.
- Explore: Don't run queries on datasource change.
- Graph: Support setting field unit & override data source (automatic) unit.
- Explore: Unification of logs/metrics/traces user interface
- Table: JSON Cell should try to convert strings to JSON
- Variables: enables cancel for slow query variables queries.
- TimeZone: unify the time zone pickers to one that can rule them all.
- Search: support URL query params.
- Grafana-UI: Add FileUpload.
- TablePanel: Sort numbers correctly.

* Bug fixes

- Alerting: remove LongToWide call in alerting.
- AzureMonitor: fix panic introduced in 7.1.4 when unit was unspecified and alias was used.
- Variables: Fixes issue with All variable not being resolved.
- Templating: Fixes so texts show in picker not the values.
- Templating: Templating: Fix undefined result when using raw interpolation format
- TextPanel: Fix content overflowing panel boundaries.
- StatPanel: Fix stat panel display name not showing when explicitly set.
- Query history: Fix search filtering if null value.
- Flux: Ensure connections to InfluxDB are closed.
- Dashboard: Fix for viewer can enter panel edit mode by modifying url (but cannot not save anything).
- Prometheus: Fix prom links in mixed mode.
- Sign In Use correct url for the Sign In button.
- StatPanel: Fixes issue with name showing for single series / field results
- BarGauge: Fix space bug in single series mode.
- Auth: Fix POST request failures with anonymous access
- Templating: Fix recursive loop of template variable queries when changing ad-hoc-variable
- Templating: Fixed recursive queries triggered when switching dashboard settings view
- GraphPanel: Fix annotations overflowing panels.
- Prometheus: Fix performance issue in processing of histogram labels.
- Datasources: Handle URL parsing error.
- Security: Use Header.Set and Header.Del for X-Grafana-User header.