Bumping for 1.20.0 release changes

(cherry picked from commit 874d0b7a)

CHANGELOG.md

@@ -3,6 +3,10 @@
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ---
+## [1.20.0]
+
+* [!1.20.0](https://repo1.dso.mil/platform-one/big-bang/bigbang/-/merge_requests?scope=all&utf8=%E2%9C%93&state=merged&milestone_title=1.20.0); List of merge requests in this release.
+
 ## [1.19.0]
 
 * [!1.19.0](https://repo1.dso.mil/platform-one/big-bang/bigbang/-/merge_requests?scope=all&utf8=%E2%9C%93&state=merged&milestone_title=1.19.0); List of merge requests in this release.

base/gitrepository.yaml

@@ -11,4 +11,4 @@ spec:
   interval: 10m
   url: https://repo1.dso.mil/platform-one/big-bang/bigbang.git
   ref:
-    tag: 1.19.0
+    tag: 1.20.0

chart/Chart.yaml

 apiVersion: v2
 name: bigbang
-version: 1.19.0
+version: 1.20.0
 description: Big Bang is a declarative, continuous delivery tool for core DoD hardened and approved packages into a Kubernetes cluster.
 
 type: application