feat(automation): bump image tag to 1.19.1 (#1315)

Co-authored-by: openhands-release-bot[bot] <290150379+openhands-release-bot[bot]@users.noreply.github.com>

Author: openhands-release-bot[bot]

charts/openhands/charts/automation/values.yaml

@@ -2,7 +2,7 @@ image:
   repository: ghcr.io/openhands/automation
   # You must use a stable, semver tag. Do not use sha-based tags.
   # If you are hotfixing, you MUST create a patch release and use the semver tag.
-  tag: 1.15.1
+  tag: 1.19.1
 
 imagePullSecrets: []