Bump nette/database from 3.1.7 to 3.1.8

Bumps [nette/database](https://github.com/nette/database) from 3.1.7 to 3.1.8.
- [Release notes](https://github.com/nette/database/releases)
- [Commits](nette/database@v3.1.7...v3.1.8)

---
updated-dependencies:
- dependency-name: nette/database
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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