updated broken import path

Author: waleedlatif1

apps/sim/tools/dspy/index.ts

@@ -1,4 +1,4 @@
-export { chainOfThoughtTool } from '@/tools/dspy/chain-of-thought'
+export { chainOfThoughtTool } from '@/tools/dspy/chain_of_thought'
 export { predictTool } from '@/tools/dspy/predict'
 export { reactTool } from '@/tools/dspy/react'
 export * from '@/tools/dspy/types'