feat(milvus): update Milvus configuration to use URI and remove deprecated host/port settings

Author: Dallas98

deployment/helm/datamate/charts/backend/templates/deployment.yaml

@@ -60,8 +60,6 @@ spec:
           env:
             {{- toYaml . | nindent 12 }}
           {{- end }}
-            - name: datamate.rag.milvus-uri
-              value: {{ .Values.milvus.uri | default "http://milvus:19530" | quote }}
           {{- with .Values.volumeMounts }}
           volumeMounts:
             {{- toYaml . | nindent 12 }}