Bump zendframework/zend-validator from 2.12.0 to 2.12.1

Bumps [zendframework/zend-validator](https://github.com/zendframework/zend-validator) from 2.12.0 to 2.12.1.
- [Release notes](https://github.com/zendframework/zend-validator/releases)
- [Changelog](https://github.com/zendframework/zend-validator/blob/master/CHANGELOG.md)
- [Commits](zendframework/zend-validator@release-2.12.0...release-2.12.1)

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