chore: Bump Helm chart version

Signed-off-by: Alby Hernández <donfumero@gmail.com>

Author: achetronic

charts/hitman/Chart.yaml

@@ -4,8 +4,8 @@ type: application
 description: >-
   A Helm chart for Hitman, a daemon for Kubernetes to kill
   target resources under user-defined templated conditions
-version: 0.6.3 # chart version
-appVersion: "0.6.3" # application version
+version: 0.6.4 # chart version
+appVersion: "0.6.4" # application version
 kubeVersion: ">=1.22.0-0" # kubernetes version
 home: https://github.com/achetronic/hitman
 sources: