prepare release 2.3.0 (#1828)

Signed-off-by: Zbynek Roubalik <[email protected]>

.github/ISSUE_TEMPLATE/3_bug_report.yml

@@ -46,6 +46,7 @@ body:
     label: KEDA Version
     description: What version of KEDA that are you running?
     options:
+    - "2.3.0"
     - "2.2.0"
     - "2.1.0"
     - "2.0.0"
@@ -59,6 +60,7 @@ body:
     label: Kubernetes Version
     description: What version of Kubernetes that are you running?
     options:
+    - "1.21"
     - "1.20"
     - "1.19"
     - "1.18"

CHANGELOG.md

@@ -5,6 +5,7 @@
 ## History
 
 - [Unreleased](#unreleased)
+- [v2.3.0](#v230)
 - [v2.2.0](#v220)
 - [v2.1.0](#v210)
 - [v2.0.0](#v200)
@@ -20,6 +21,24 @@
 
 ### New
 
+- TODO ([#XXX](https://github.com/kedacore/keda/pull/XXX))
+
+### Improvements
+
+- TODO ([#XXX](https://github.com/kedacore/keda/pull/XXX))
+
+### Breaking Changes
+
+- TODO ([#XXX](https://github.com/kedacore/keda/pull/XXX))
+
+### Other
+
+- TODO ([#XXX](https://github.com/kedacore/keda/pull/XXX))
+
+## v2.3.0
+
+### New
+
 - Add Azure Pipelines Scaler ([#1706](https://github.com/kedacore/keda/pull/1706))
 - Add OpenStack Metrics Scaler ([#1382](https://github.com/kedacore/keda/issues/1382))
 - Added basic, tls and bearer authentication support to the Prometheus scaler [#1559](https://github.com/kedacore/keda/issues/1559)
@@ -38,7 +57,7 @@
 
 ### Breaking Changes
 
-- TODO ([#XXX](https://github.com/kedacore/keda/issues/XXX))
+- None.
 
 ### Other