Add manager init container image to values

[catemiko]

Manager init container image should be added in values, instead being hardcoded into templates.

wazuh-helm/charts/wazuh/templates/manager/master/statefulset.yaml

Lines 80 to 83 in 9bc984b

	initContainers:
	- name: update-index
	image: alpine
	imagePullPolicy: {{ .Values.wazuh.images.pullPolicy }}

wazuh-helm/charts/wazuh/templates/manager/worker/statefulset.yaml

Lines 95 to 98 in 9bc984b

	initContainers:
	- name: update-index
	image: alpine
	imagePullPolicy: {{ .Values.wazuh.images.pullPolicy }}

[morgoved]

@catemiko If you need to be able to change this, you can always make a PR