chore: add buildScriptName to chromatic configuration (#2742)

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Author: tobiasdiez

chromatic.config.json

@@ -1,4 +1,5 @@
 {
   "projectId": "Project:61142988527d34003b1e783d",
-  "zip": true
+  "zip": true,
+  "buildScriptName": "storybook:build"
 }