ozg-3961 adjust api user secret key

src/main/helm/templates/deployment.yaml

@@ -83,7 +83,7 @@ spec:
           valueFrom:
             secretKeyRef:
               name: {{ include "app.generateKeycloakUserSecretName" . }}
-              key: username
+              key: name
               optional: false        
         {{- end }}
         - name: QUARKUS_MONGODB_DATABASE

src/test/helm/deployment-keycloak-values-test.yaml

@@ -137,7 +137,7 @@ tests:
             valueFrom:
               secretKeyRef:
                 name: usermanagerapiuser-credentials
-                key: username
+                key: name
                 optional: false
       - contains:
           path: spec.template.spec.containers[0].env