chore: add security context to upgrade job (#9702)

Author: floppyfish14

deploy/helm/templates/kubeblocks-upgrade-hook.yaml

@@ -41,6 +41,10 @@ spec:
                  echo "ERROR: can not upgrade KubeBlocks from $version to {{ .Chart.AppVersion }}"
                  exit 1
               fi
+          {{- with .Values.securityContext }}
+          securityContext:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
       {{- with .Values.topologySpreadConstraints }}
       topologySpreadConstraints:
         {{- toYaml . | nindent 8 }}