github_actions_ci: Update CHANGELOG and RELEASE-NOTES for shield-1.8.1

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
+# v1.8.1
+### Chores
+* **shield,cluster-shield,sysdig-deploy** [376fca85](https://github.com/sysdiglabs/charts/commit/376fca85c6f942c2ddc9b494211b29bdddd9b257): Automatic bump to version 1.12.1 ([#2278](https://github.com/sysdiglabs/charts/issues/2278))
 # v1.8.0
 ### Chores
 * **cluster-shield,sysdig-deploy,shield** [d76fccf8](https://github.com/sysdiglabs/charts/commit/d76fccf80af45038011114192624b37e81411c64): Automatic bump to version 1.12.0 ([#2272](https://github.com/sysdiglabs/charts/issues/2272))

charts/shield/RELEASE-NOTES.md

@@ -1,5 +1,5 @@
 # What's Changed
 
 ### Chores
-- **cluster-shield,sysdig-deploy,shield** [d76fccf8](https://github.com/sysdiglabs/charts/commit/d76fccf80af45038011114192624b37e81411c64): Automatic bump to version 1.12.0 ([#2272](https://github.com/sysdiglabs/charts/issues/2272))
-#### Full diff: https://github.com/sysdiglabs/charts/compare/shield-1.7.1...shield-1.8.0
+- **shield,cluster-shield,sysdig-deploy** [376fca85](https://github.com/sysdiglabs/charts/commit/376fca85c6f942c2ddc9b494211b29bdddd9b257): Automatic bump to version 1.12.1 ([#2278](https://github.com/sysdiglabs/charts/issues/2278))
+#### Full diff: https://github.com/sysdiglabs/charts/compare/shield-1.8.0...shield-1.8.1