github_actions_ci: Update CHANGELOG and RELEASE-NOTES for agent-1.18.4

Author: draios-jenkins

charts/agent/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
+# v1.18.4
+### New Features
+* **agent** [3be55461](https://github.com/sysdiglabs/charts/commit/3be55461cc3b28f710c1000583018c9584616681): add tolerations for rke2 master nodes ([#1539](https://github.com/sysdiglabs/charts/issues/1539))
 # v1.18.3
 ### Bug Fixes
 * **agent,sysdig-deploy** [d8e38523](https://github.com/sysdiglabs/charts/commit/d8e38523b3e94f0a6311bb5be8f5135e56d47f1c): /var/data volume mount ([#1532](https://github.com/sysdiglabs/charts/issues/1532))

charts/agent/RELEASE-NOTES.md

@@ -1,5 +1,5 @@
 # What's Changed
 
-### Bug Fixes
-- **agent,sysdig-deploy** [d8e38523](https://github.com/sysdiglabs/charts/commit/d8e38523b3e94f0a6311bb5be8f5135e56d47f1c): /var/data volume mount ([#1532](https://github.com/sysdiglabs/charts/issues/1532))
-#### Full diff: https://github.com/sysdiglabs/charts/compare/agent-1.18.2...agent-1.18.3
+### New Features
+- **agent** [3be55461](https://github.com/sysdiglabs/charts/commit/3be55461cc3b28f710c1000583018c9584616681): add tolerations for rke2 master nodes ([#1539](https://github.com/sysdiglabs/charts/issues/1539))
+#### Full diff: https://github.com/sysdiglabs/charts/compare/agent-1.18.3...agent-1.18.4