Bump subxt from 0.35.2 to 0.35.3

Bumps [subxt](https://github.com/paritytech/subxt) from 0.35.2 to 0.35.3.
- [Release notes](https://github.com/paritytech/subxt/releases)
- [Changelog](https://github.com/paritytech/subxt/blob/v0.35.3/CHANGELOG.md)
- [Commits](https://github.com/paritytech/subxt/compare/v0.35.2...v0.35.3)

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

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