Revert mustMergeOverwrite

Wrong merge order analysis:
1 - values.yaml (helm chart default values)
2 - application-helm.yaml ( helm chart _helpers.yaml)
3 - specific values for project (terraform, manual installation,...)

Author: jreynard-code

api/kubernetes/helm-chart/templates/secret.yaml

@@ -1,5 +1,5 @@
 {{- $baseConfig := include "cosmotech-api.baseConfig" . | fromYaml -}}
-{{- $mergedConfig := mustMergeOverwrite (dict) $baseConfig .Values.config   -}}
+{{- $mergedConfig := mustMergeOverwrite (dict) .Values.config $baseConfig  -}}
 kind: Secret
 apiVersion: v1
 metadata: