github_actions_ci: Update CHANGELOG and RELEASE-NOTES for shield-1.20.0

Author: draios-jenkins

charts/shield/CHANGELOG.md

@@ -10,6 +10,9 @@ Manual edits are supported only below '## Change Log' and should be used
 exclusively to fix incorrect entries and not to add new ones.
 
 ## Change Log
+# v1.20.0
+### Chores
+* **cluster-shield,sysdig-deploy,shield** [f2021042](https://github.com/sysdiglabs/charts/commit/f2021042c3f4e644263444c0ae6026fb2734a9e8): release cluster-shield 1.16.0 ([#2397](https://github.com/sysdiglabs/charts/issues/2397))
 # v1.19.4
 ### New Features
 * **shield** [1d062f15](https://github.com/sysdiglabs/charts/commit/1d062f159423910f51145eda01e3f177de213f3e): convert alf config to secret ([#2303](https://github.com/sysdiglabs/charts/issues/2303))

charts/shield/RELEASE-NOTES.md

@@ -1,5 +1,5 @@
 # What's Changed
 
-### New Features
-- **shield** [1d062f15](https://github.com/sysdiglabs/charts/commit/1d062f159423910f51145eda01e3f177de213f3e): convert alf config to secret ([#2303](https://github.com/sysdiglabs/charts/issues/2303))
-#### Full diff: https://github.com/sysdiglabs/charts/compare/shield-1.19.3...shield-1.19.4
+### Chores
+- **cluster-shield,sysdig-deploy,shield** [f2021042](https://github.com/sysdiglabs/charts/commit/f2021042c3f4e644263444c0ae6026fb2734a9e8): release cluster-shield 1.16.0 ([#2397](https://github.com/sysdiglabs/charts/issues/2397))
+#### Full diff: https://github.com/sysdiglabs/charts/compare/shield-1.19.4...shield-1.20.0