chore: Prepare v2.15.1 (#6051)

* chore: Prepare v2.15.1

Signed-off-by: Jorge Turrado <jorge_turrado@hotmail.es>

* fix changelog

Signed-off-by: Jorge Turrado <jorge_turrado@hotmail.es>

---------

Signed-off-by: Jorge Turrado <jorge_turrado@hotmail.es>

.github/ISSUE_TEMPLATE/3_bug_report.yml

@@ -57,6 +57,7 @@ body:
     label: KEDA Version
     description: What version of KEDA that are you running?
     options:
+    - "2.15.1"
     - "2.15.0"
     - "2.14.1"
     - "2.14.0"

CHANGELOG.md

@@ -16,6 +16,7 @@ To learn more about active deprecations, we recommend checking [GitHub Discussio
 ## History
 
 - [Unreleased](#unreleased)
+- [v2.15.1](#v2151)
 - [v2.15.0](#v2150)
 - [v2.14.1](#v2141)
 - [v2.14.0](#v2140)
@@ -70,8 +71,7 @@ Here is an overview of all new **experimental** features:
 
 ### Fixes
 
-- **General**: Hashicorp Vault PKI doesn't fail with due to KeyPair mismatch ([#6028](https://github.com/kedacore/keda/issues/6028))
-- **JetStream**: Consumer leader change is correctly detected ([#6042](https://github.com/kedacore/keda/issues/6042))
+- TODO ([#XXX](https://github.com/kedacore/keda/issues/XXX))
 
 ### Deprecations
 
@@ -85,6 +85,18 @@ New deprecation(s):
 
 - TODO ([#XXX](https://github.com/kedacore/keda/issues/XXX))
 
+### Other
+
+- TODO ([#XXX](https://github.com/kedacore/keda/issues/XXX))
+
+## v2.15.1
+
+### Fixes
+
+- **General**: Hashicorp Vault PKI doesn't fail with due to KeyPair mismatch ([#6028](https://github.com/kedacore/keda/issues/6028))
+- **JetStream**: Consumer leader change is correctly detected ([#6042](https://github.com/kedacore/keda/issues/6042))
+
+
 ### Other
 
 - **General**: Bump deps and k8s deps to 0.29.7 ([#6035](https://github.com/kedacore/keda/pull/6035))