re-camelcase jokeTeller

tagging issue was temporarily solved in firebase/firebase-tools#8127

full fix in https://www.google.com/url?q=https://github.com/firebase/firebase-tools/pull/8135&sa=D&source=docs&ust=1738351130584076&usg=AOvVaw0SL0m38qeHnFda8HLqfWro

Author: jhuleatt

Node/quickstarts/genkit-helloworld/functions/index.js

@@ -33,7 +33,7 @@ const ai = genkit({
 });
 
 const jokeTeller = ai.defineFlow({
-  name: "joketeller",
+  name: "jokeTeller",
   inputSchema: z.string().nullable(),
   outputSchema: z.string(),
   streamSchema: z.string(),