Add pyproject.toml #1758

Job	Run time
Test frontend	28s
Test mcp-server on 3.8	6m 20s
Lint	1m 11s
Test mcp-server on 3.9	7m 0s
Test mcp-server on 3.10	5m 47s
Test mcp-server on 3.11	5m 54s
Test mcp-server on 3.12	6m 26s
Test mcp-client on 3.8	6m 54s
Test mcp-client on 3.9	5m 57s
Test mcp-client on 3.10	6m 15s
Test mcp-client on 3.11	6m 47s
Test mcp-client on 3.12	7m 40s
Test dashboard on 3.8	6m 48s
Test dashboard on 3.9	7m 26s
Test dashboard on 3.10	7m 34s
Test dashboard on 3.11	6m 31s
Test dashboard on 3.12	7m 45s
Test archivematica-common on 3.8	6m 22s
Test archivematica-common on 3.9	5m 33s
Test archivematica-common on 3.10	6m 45s
Test archivematica-common on 3.11	5m 52s
Test archivematica-common on 3.12	6m 26s
Test storage-service on 3.9	6m 5s
Test migrations on 3.9	5m 34s
	2h 25m 20s

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