Make server type (Paper, Folia) selectable #329

Job	Run time
Build / Prepare	1s
Build / Build / Gradle build	47s
E2E test (1.12.2, bungeecord) / E2E (1.12.2, bungeecord, paper)	1m 1s
E2E test (1.13.2, bungeecord) / E2E (1.13.2, bungeecord, paper)	1m 15s
E2E test (1.12.2, velocity) / E2E (1.12.2, velocity, paper)	1m 7s
E2E test (1.13.2, velocity) / E2E (1.13.2, velocity, paper)	1m 33s
E2E test (1.16.3, bungeecord) / E2E (1.16.3, bungeecord, paper)	1m 12s
E2E test (1.16.5, bungeecord) / E2E (1.16.5, bungeecord, paper)	1m 15s
E2E test (1.16.5, velocity) / E2E (1.16.5, velocity, paper)	1m 15s
E2E test (1.16.3, velocity) / E2E (1.16.3, velocity, paper)	1m 9s
E2E test (1.21.1, bungeecord) / E2E (1.21.1, bungeecord, paper)	1m 27s
E2E test (1.21.1, velocity) / E2E (1.21.1, velocity, paper)	1m 37s
E2E test (1.8.9, bungeecord) / E2E (1.8.9, bungeecord, paper)	1m 13s
E2E test (1.8.9, velocity) / E2E (1.8.9, velocity, paper)	2m 29s
E2E test (with Folia) (1.20.6, bungeecord, folia) / E2E (1.20.6, bungeecord, folia)	1m 16s
E2E test (with Folia) (1.20.6, bungeecord, paper) / E2E (1.20.6, bungeecord, paper)	1m 18s
E2E test (with Folia) (1.20.6, velocity, paper) / E2E (1.20.6, velocity, paper)	6h 0m 13s
E2E test (with Folia) (1.20.6, velocity, folia) / E2E (1.20.6, velocity, folia)	1m 19s
	6h 21m 27s

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