Bump elliptic from 6.5.3 to 6.5.4

Bumps [elliptic](https://github.com/indutny/elliptic) from 6.5.3 to 6.5.4.
- [Release notes](https://github.com/indutny/elliptic/releases)
- [Commits](indutny/elliptic@v6.5.3...v6.5.4)

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -77,7 +77,7 @@
     "@vechain/ethers": "^4.0.27-3",
     "bignumber.js": "^7.2.1",
     "blakejs": "^1.1.0",
-    "elliptic": "6.5.3",
+    "elliptic": "6.5.4",
     "fast-json-stable-stringify": "^2.0.0",
     "js-sha3": "0.5.7",
     "rlp": "^2.0.0"