Rename catalog.nix to pmd-catalog.nix #652

Job	Run time
bastion / deploy	1m 30s
machines (collab-dev.l) / deploy	1m 6s
machines (bioma.l) / deploy	1m 6s
machines (collab.l) / deploy	1m 7s
machines (builder.l) / deploy	1m 5s
machines (gateway.l) / deploy	1m 5s
machines (gc.l) / deploy	1m 6s
machines (login.l) / deploy	1m 6s
machines (minimal.l) / deploy	1m 4s
machines (pmd-catalog.l) / deploy	45s
machines (prometheus.l) / deploy	1m 4s
machines (proxy.l) / deploy	1m 7s
machines (ps.l) / deploy	1m 6s
machines (runner1.l) / deploy	1m 4s
machines (student-mqtt.l) / deploy	1m 4s
	16m 25s

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