Release 0.6.0

See #67, release log:

• 1abb6d6 by @rultor: version 0.6.0
• 34ba658 by @rafamizes: feat: 'ReqEmail.len' construct...
• 66657ad by @rafamizes: feat!: Req accept validation s...

Released by Rultor 1.69.1, see build log