Bump bitcoin_slices from 0.6.0 to 0.6.2

Bumps [bitcoin_slices](https://github.com/RCasatta/bitcoin_slices) from 0.6.0 to 0.6.2.
- [Commits](https://github.com/RCasatta/bitcoin_slices/commits/0.6.2)

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

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