Support compressed comps.xml created with createrepo_c >= 1.0 #3293

Job	Run time
Pre-commit checks	6m 5s
Integration Tests (f38)	4m 0s
Unit Tests (f38, bodhi-client)	2m 4s
Integration Tests (f39)	5m 51s
Unit Tests (f38, bodhi-messages)	2m 30s
Build Documentation (f38)	2m 7s
Unit Tests (f38, bodhi-server)	2m 39s
Build Documentation (f39)	2m 1s
Unit Tests (f39, bodhi-client)	1m 58s
Integration Tests (rawhide)	9m 48s
Build Documentation (pip)	4m 39s
Unit Tests (f39, bodhi-messages)	1m 50s
Build Documentation (rawhide)	2m 4s
Unit Tests (f39, bodhi-server)	3m 8s
Build the RPMS (f38)	2m 41s
Unit Tests (pip, bodhi-client)	4m 19s
Build the RPMS (f39)	1m 59s
Unit Tests (pip, bodhi-messages)	6m 16s
Build the RPMS (rawhide)	2m 11s
Unit Tests (pip, bodhi-server)	10m 54s
Unit Tests (rawhide, bodhi-client)	1m 51s
Unit Tests (rawhide, bodhi-messages)	1m 35s
Unit Tests (rawhide, bodhi-server)	6m 19s
Diff-cover check	12s
	1h 29m 1s

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