chore(deps): bump @polkadot/types-codec in /libraries/js

Bumps [@polkadot/types-codec](https://github.com/polkadot-js/api/tree/HEAD/packages/types-codec) from 14.2.3 to 15.3.1.
- [Release notes](https://github.com/polkadot-js/api/releases)
- [Changelog](https://github.com/polkadot-js/api/blob/master/CHANGELOG.md)
- [Commits](https://github.com/polkadot-js/api/commits/v15.3.1/packages/types-codec)

---
updated-dependencies:
- dependency-name: "@polkadot/types-codec"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

libraries/js/package.json

@@ -52,7 +52,7 @@
     "@digitalcredentials/vc": "^9.0.1",
     "@polkadot/keyring": "^13.2.2",
     "@polkadot/types": "^14.2.2",
-    "@polkadot/types-codec": "^14.2.2",
+    "@polkadot/types-codec": "^15.3.1",
     "@polkadot/util": "^13.2.2",
     "@polkadot/util-crypto": "^13.2.2",
     "base-x": "^5.0.0",