BIS-998: Fixes to tar export

core-plugin-openbis/dist/core-plugins/imaging/1/as/core-plugin.properties

+#
+#  Copyright ETH 2023 Zürich, Scientific IT Services
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+#
+
+required-plugins=admin:services
\ No newline at end of file