build(deps): bump @cosmjs/amino from 0.31.0 to 0.31.1

Bumps [@cosmjs/amino](https://github.com/cosmos/cosmjs) from 0.31.0 to 0.31.1.
- [Changelog](https://github.com/cosmos/cosmjs/blob/main/CHANGELOG.md)
- [Commits](cosmos/cosmjs@v0.31.0...v0.31.1)

---
updated-dependencies:
- dependency-name: "@cosmjs/amino"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -34,7 +34,7 @@
     ]
   },
   "dependencies": {
-    "@cosmjs/amino": "^0.31.0",
+    "@cosmjs/amino": "^0.31.1",
     "@cosmjs/crypto": "^0.31.0",
     "@cosmjs/encoding": "^0.31.0",
     "@cosmjs/math": "^0.31.0",