client/ts-web: bump elliptic from 6.5.4 to 6.5.5 in /client-sdk/ts-web

Bumps [elliptic](https://github.com/indutny/elliptic) from 6.5.4 to 6.5.5.
- [Commits](indutny/elliptic@v6.5.4...v6.5.5)

---
updated-dependencies:
- dependency-name: elliptic
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

client-sdk/ts-web/rt/package.json

@@ -24,7 +24,7 @@
     "dependencies": {
         "@oasisprotocol/client": "^1.0.0",
         "@oasisprotocol/deoxysii": "^0.0.5",
-        "elliptic": "^6.5.3",
+        "elliptic": "^6.5.5",
         "js-sha512": "^0.9.0",
         "randombytes": "^2.0.1",
         "sha3": "^2.1.4",