chore(proof): update artifacts version (#838)

Author: cedoor

packages/proof/src/generate-proof.ts

@@ -86,7 +86,7 @@ export default async function generateProof(
     // If the Snark artifacts are not defined they will be automatically downloaded.
     snarkArtifacts ??= await maybeGetSnarkArtifacts(Project.SEMAPHORE, {
         parameters: [merkleTreeDepth],
-        version: "4.0.0-beta.18"
+        version: "4.0.0"
     })
     const { wasm, zkey } = snarkArtifacts