github_actions_ci: Update CHANGELOG and RELEASE-NOTES for sysdig-1.16.21

Author: draios-jenkins

charts/sysdig/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
+# v1.16.21
+### Chores
+* **sysdig, node-analyzer** [6c7c27bf](https://github.com/sysdiglabs/charts/commit/6c7c27bf845b30af0eb5a4cb8f5fe330923d564f): bump sysdig/vuln-runtime-scanner to v1.6.4 [SSPROD-3285] ([#1477](https://github.com/sysdiglabs/charts/issues/1477))
 # v1.16.20
 ### Bug Fixes
 * **agent,kspm-collector,node-analyzer,sysdig** [f378d192](https://github.com/sysdiglabs/charts/commit/f378d1922d0f21f5936c6ed872e6538536ccf1f2): whitespace errors ([#1436](https://github.com/sysdiglabs/charts/issues/1436))

charts/sysdig/RELEASE-NOTES.md

@@ -1,5 +1,5 @@
 # What's Changed
 
-### Bug Fixes
-- **agent,kspm-collector,node-analyzer,sysdig** [f378d192](https://github.com/sysdiglabs/charts/commit/f378d1922d0f21f5936c6ed872e6538536ccf1f2): whitespace errors ([#1436](https://github.com/sysdiglabs/charts/issues/1436))
-#### Full diff: https://github.com/sysdiglabs/charts/compare/sysdig-deploy-1.29.1...sysdig-1.16.20
+### Chores
+- **sysdig, node-analyzer** [6c7c27bf](https://github.com/sysdiglabs/charts/commit/6c7c27bf845b30af0eb5a4cb8f5fe330923d564f): bump sysdig/vuln-runtime-scanner to v1.6.4 [SSPROD-3285] ([#1477](https://github.com/sysdiglabs/charts/issues/1477))
+#### Full diff: https://github.com/sysdiglabs/charts/compare/sysdig-deploy-1.29.8...sysdig-1.16.21