fix: lowercase request and response fields should produce an error (#… #2414

Job	Run time
SQL	25s
Test Kotlin	1m 7s
Test Go	56s
Console	43s
Lint	53s
Proto Breaking Change Check	6s
Integration Tests / prepare	4s
Integration Tests / integration (TestLifecycle)	2m 34s
Integration Tests / integration (TestHttpIngress)	2m 32s
Integration Tests / integration (TestDatabase)	2m 44s
Integration Tests / integration (TestExternalCalls)	3m 44s
Integration Tests / integration (TestSchemaGenerate)	2m 5s
Auto Version / Conventional Commits Auto-version	5s
	17m 58s

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