Revert "Ensure image tag is lower case"

This reverts commit dcd3607.

Author: alex-berger

charts/k8s-gitops-secrets-controller/templates/deployment.yaml

@@ -51,7 +51,7 @@ spec:
           {{- end }}
           securityContext:
             {{- toYaml .Values.securityContext | nindent 12 }}
-          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default (lower .Chart.AppVersion) }}"
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           ports:
             - name: http