chore(deps): Bump exchange-rs from 7f3c4ab to 4951af1

Bumps [exchange-rs](https://github.com/exchangers-mail/exchange-rs) from `7f3c4ab` to `4951af1`.
- [Commits](neeml/exchange-rs@7f3c4ab...4951af1)

---
updated-dependencies:
- dependency-name: exchange-rs
  dependency-version: 4951af1829a637b0e56a232d95f5c8f616b58e1b
  dependency-type: direct:production
...

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Author: dependabot[bot]