Add tests for identify_file_format script #1743

Job	Run time
Lint	1m 10s
Test frontend	30s
Test mcp-server on 3.8	7m 15s
Test mcp-server on 3.9	6m 20s
Test mcp-server on 3.10	9m 6s
Test mcp-server on 3.11	8m 33s
Test mcp-server on 3.12	9m 14s
Test mcp-client on 3.8	8m 24s
Test mcp-client on 3.9	8m 33s
Test mcp-client on 3.10	9m 33s
Test mcp-client on 3.11	8m 35s
Test mcp-client on 3.12	9m 55s
Test dashboard on 3.8	9m 7s
Test dashboard on 3.9	9m 50s
Test dashboard on 3.10	9m 16s
Test dashboard on 3.11	9m 27s
Test dashboard on 3.12	9m 58s
Test archivematica-common on 3.8	8m 49s
Test archivematica-common on 3.9	8m 44s
Test archivematica-common on 3.10	8m 25s
Test archivematica-common on 3.11	8m 5s
Test archivematica-common on 3.12	9m 32s
Test storage-service on 3.9	10m 41s
Test migrations on 3.9	6m 19s
	3h 15m 21s

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