fix typo

Author: SpaceWalkerRS

src/main/java/net/ornithemc/keratin/KeratinGradleExtension.java

@@ -237,7 +237,7 @@ public KeratinGradleExtension(Project project) {
 			return info;
 		});
 		this.versionDetails = new Versioned<>(minecraftVersion -> {
-			File file = this.files.getGlobalCache().getMetadataCache().getVersionDetailJsons(minecraftVersion);
+			File file = this.files.getGlobalCache().getMetadataCache().getVersionDetailJson(minecraftVersion);
 
 			if (cacheInvalid || project.getGradle().getStartParameter().isRefreshDependencies() || !file.exists()) {
 				VersionsManifest manifest = getVersionsManifest();

src/main/java/net/ornithemc/keratin/api/files/GlobalCacheAccess.java

@@ -35,7 +35,7 @@ interface MetadataCacheAccess {
 
 		File getVersionInfoJson(String minecraftVersion);
 
-		File getVersionDetailJsons(String minecraftVersion);
+		File getVersionDetailJson(String minecraftVersion);
 
 	}
 

src/main/java/net/ornithemc/keratin/files/GlobalCache.java

@@ -137,7 +137,7 @@ public File getVersionInfoJson(String minecraftVersion) {
 		}
 
 		@Override
-		public File getVersionDetailJsons(String minecraftVersion) {
+		public File getVersionDetailJson(String minecraftVersion) {
 			return file("%s-details.json".formatted(minecraftVersion));
 		}
 	}