assert that the DefaultConfigManager is ready before attempting to ge… #623

Job	Run time
Generate build matrix	5s
Build with gradle (1.21.1-neoforge:1.21.1, false)	4m 3s
Build with gradle (1.21.11-fabric:1.21.11, false)	4m 5s
Build with gradle (1.21.4-fabric:1.21.4, false)	4m 33s
Build with gradle (1.21.1-fabric:1.21.1, false)	3m 51s
Build with gradle (1.21.8-fabric:1.21.8, false)	11s
Build with gradle (1.21.5-neoforge:1.21.5, false)	8s
Build with gradle (1.21.10-fabric:1.21.10, false)	24s
Build with gradle (1.21.8-neoforge:1.21.8, false)	12s
Build with gradle (1.21.5-fabric:1.21.5, false)	3m 52s
Build with gradle (1.21.11-neoforge:1.21.11, false)	3m 32s
Build with gradle (1.21.3-neoforge:1.21.3, false)	16s
Build with gradle (1.21.10-neoforge:1.21.10, false)	3m 43s
Build with gradle (1.21.4-neoforge:1.21.4, false)	25s
Build with gradle (1.21.3-fabric:1.21.3, false)	4m 4s
	33m 24s

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