chore(deps): update dependency solhint to v6.2.1

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

bun.lock

@@ -52,7 +52,7 @@
     "hardhat": "2.27.1",
     "poseidon-lite": "0.3.0",
     "snarkjs": "0.7.5",
-    "solhint": "6.0.1",
+    "solhint": "6.2.1",
     "zeto-js": "file:./zkp/js"
   },
   "overrides": {