Release notes for Grafana 8.0.2

Features and enhancements

• Datasource: Add support for max_conns_per_host in dataproxy settings. #35520, @jvrplmlmn

Bug fixes

• Configuration: Fix changing org preferences in FireFox. #35549, @hugohaggmark
• PieChart: Fix legend dimension limits. #35563, @torkelo
• Postgres/MySQL/MSSQL: Fix panic in concurrent map writes. #35510, @marefr
• Variables: Hide default data source if missing from regex. #35561, @hugohaggmark