Release v1.2.0

What's Changed

• feat: add support for dynamic variables from parseable by @stanvanrooy in #31
• feat: handle query interpolation multi-valued variable by @stanvanrooy in #32
• Add artefacts for release 1.2.0 by @nitisht in #33
• Update CLA to use central sign directory by @nitisht in #35
• fix: handle invalid initial value in variable formatter by @stanvanrooy in #36
• feat: add backend plugin to make alerting possible by @stanvanrooy in #37
• Update fix for edge case in query and add alerting feature by @nitisht in #38
• add binaries for backend by @nitisht in #40
• address feedback from grafana by @nitisht in #41

Full Changelog: v1.1.0...v1.2.0