Update Chart.yaml and changelog for 0.24.0 release

Author: cf-ci-bot-v2

charts/gitops-runtime/Chart.yaml

@@ -14,6 +14,8 @@ maintainers:
 annotations:
   artifacthub.io/alternativeName: "codefresh-gitops-runtime"
   artifacthub.io/changes: |-
+    - kind: changed
+      description: 'feat: support single-namespaced runtime installation (#617)'
     - kind: changed
       description: 'prepare-version(0.23.3): prepare chart content for release (#695)'
     - kind: changed