Fix has_packages client script #1207

Job	Run time
Lint	1m 20s
Test frontend	51s
Test mcp-server on 3.8	5m 33s
Test mcp-server on 3.9	5m 0s
Test mcp-server on 3.10	5m 46s
Test mcp-client on 3.8	7m 31s
Test mcp-client on 3.9	5m 55s
Test mcp-client on 3.10	8m 4s
Test dashboard on 3.8	6m 33s
Test dashboard on 3.9	6m 6s
Test dashboard on 3.10	5m 55s
Test archivematica-common on 3.8	5m 23s
Test archivematica-common on 3.9	4m 56s
Test archivematica-common on 3.10	4m 55s
Test storage-service on 3.9	5m 11s
Test migrations on 3.9	4m 56s
	1h 23m 55s

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