new arg to filter by subclass ref #12061

Job	Run time
Check which packages changed	0s
AI bot Tests	44s
Boxel Icons ensure raw icon changes only	1m 14s
Boxel Motion Tests	1m 5s
Boxel UI ensure raw icon changes only	44s
Boxel UI Tests	3m 31s
Matrix Client Tests (1, 12)	12m 4s
Matrix Client Tests (10, 12)	7m 46s
Matrix Client Tests (11, 12)	9m 13s
Matrix Client Tests (12, 12)	10m 4s
Matrix Client Tests (2, 12)	11m 30s
Matrix Client Tests (3, 12)	11m 30s
Matrix Client Tests (4, 12)	10m 51s
Matrix Client Tests (5, 12)	10m 47s
Matrix Client Tests (6, 12)	10m 16s
Matrix Client Tests (7, 12)	10m 50s
Matrix Client Tests (8, 12)	10m 49s
Matrix Client Tests (9, 12)	9m 32s
Realm Server Tests (auth-client-test.ts)	5m 8s
Realm Server Tests (billing-test.ts)	5m 7s
Realm Server Tests (indexing-test.ts)	5m 59s
Realm Server Tests (index-query-engine-test.ts)	5m 28s
Realm Server Tests (index-writer-test.ts)	5m 18s
Realm Server Tests (loader-test.ts)	5m 36s
Realm Server Tests (module-syntax-test.ts)	5m 16s
Realm Server Tests (queue-test.ts)	5m 14s
Realm Server Tests (realm-endpoints-test.ts)	9m 58s
Realm Server Tests (server-endpoints-test.ts)	7m 19s
Realm Server Tests (virtual-network-test.ts)	5m 19s
Boxel Tools VS Code Extension package	2m 9s
Deploy boxel to staging	0s
Merge Matrix reports and publish	50s
	3h 21m 11s

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