Remove quote marks and styling from badge tagline (#4630) #3425

Job	Run time
Check backend needs building	14s
Check pretix needs building	12s
Check frontend needs building	14s
Build pretix	0s
Build backend	0s
Deploy backend	46s
Wait backend deployment	10s
Build frontend / Build	3m 40s
Deploy frontend	45s
Wait frontend deployment	40s
	6m 41s

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