build(deps): bump @cosmos-kit/cosmostation from 0.15.17 to 2.15.3

Bumps [@cosmos-kit/cosmostation](https://github.com/hyperweb-io/cosmos-kit) from 0.15.17 to 2.15.3.
- [Commits](https://github.com/hyperweb-io/cosmos-kit/compare/@cosmos-kit/[email protected]...@cosmos-kit/[email protected])

---
updated-dependencies:
- dependency-name: "@cosmos-kit/cosmostation"
  dependency-version: 2.15.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]