Update dependency secp256k1 to v5

Author: renovate[bot]

package.json

@@ -17,7 +17,7 @@
     "bip66": "^2.0.0",
     "lightningdevkit-node-net": "0.0.12-3.0",
     "node-fetch": "^3.0.0",
-    "secp256k1": "^4.0.2",
+    "secp256k1": "^5.0.0",
     "tiny-secp256k1": "^1.1.1",
     "wif": "^4.0.0"
   },