Add FileDef for purpose of uploading/attaching files #12106

Job	Run time
Check which packages changed	0s
Boxel Icons ensure raw icon changes only	1m 15s
AI bot Tests	52s
Boxel UI ensure raw icon changes only	42s
Boxel Motion Tests	1m 15s
Boxel UI Tests	3m 12s
Boxel Tools VS Code Extension package	2m 11s
Realm Server Tests (auth-client-test.ts)	5m 10s
Realm Server Tests (billing-test.ts)	5m 1s
Realm Server Tests (indexing-test.ts)	5m 50s
Realm Server Tests (index-query-engine-test.ts)	6m 4s
Realm Server Tests (index-writer-test.ts)	5m 33s
Realm Server Tests (loader-test.ts)	5m 41s
Realm Server Tests (module-syntax-test.ts)	5m 15s
Realm Server Tests (queue-test.ts)	5m 9s
Realm Server Tests (realm-endpoints-test.ts)	10m 4s
Realm Server Tests (server-endpoints-test.ts)	7m 29s
Realm Server Tests (virtual-network-test.ts)	5m 5s
Matrix Client Tests (1, 12)	11m 9s
Matrix Client Tests (10, 12)	8m 17s
Matrix Client Tests (11, 12)	8m 55s
Matrix Client Tests (12, 12)	9m 47s
Matrix Client Tests (2, 12)	11m 55s
Matrix Client Tests (3, 12)	10m 41s
Matrix Client Tests (4, 12)	11m 34s
Matrix Client Tests (5, 12)	10m 45s
Matrix Client Tests (6, 12)	10m 42s
Matrix Client Tests (7, 12)	11m 15s
Matrix Client Tests (8, 12)	11m 58s
Matrix Client Tests (9, 12)	10m 46s
Deploy boxel to staging	0s
Merge Matrix reports and publish	58s
	3h 24m 30s

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