fix: Use correct GitHub link for Shopware 5 repo #59

Job	Run time
Setup old Shopware (5.3, 5.6, 5.7, 5.3.5-5.3.7) / Setup Shopware 5.3	3m 17s
Setup old Shopware (5.3, 5.6, 5.7, 5.3.5-5.3.7) / Setup Shopware 5.3	5m 10s
Setup old Shopware (5.4, 5.6, 5.7, 5.4.6) / Setup Shopware 5.4	3m 36s
Setup old Shopware (5.4, 5.6, 5.7, 5.4.6) / Setup Shopware 5.4	4m 37s
Setup old Shopware (5.2, 5.6, 5.7, 5.2.11-5.2.27) / Setup Shopware 5.2	3m 37s
Setup old Shopware (5.2, 5.6, 5.7, 5.2.11-5.2.27) / Setup Shopware 5.2	5m 16s
Setup old Shopware (5.5, 7.1, 5.7, 5.5.0-5.5.10) / Setup Shopware 5.5	3m 37s
Setup old Shopware (5.5, 7.1, 5.7, 5.5.0-5.5.10) / Setup Shopware 5.5	4m 58s
Setup old Shopware (5.6, 7.2, 5.7, none) / Setup Shopware 5.6	3m 37s
Setup old Shopware (5.6, 7.2, 5.7, none) / Setup Shopware 5.6	4m 42s
	42m 27s

Provide feedback