`StSchema` without an argument

See #132, release log:

• bf1effc by @yegor256: #132 line counting fixed
• 0f523d0 by @yegor256: #118 typo
• 71dccc9 by @yegor256: Merge pull request #99 from ye...
• 5b8a145 by @yegor256: Merge pull request #109 from y...
• 735da32 by @yegor256: #118 parent up to 0.68.0
• 0b272bb by @yegor256: #132 up
• ff7b033 by @yegor256: #132 skip on win
• 46f9eaf by @yegor256: #132 test for StSchema
• a874e3c by @yegor256: #132 sonar java 21
• 51a77a8 by @yegor256: #132 token for codecov
• 0d6bdd6 by @yegor256: #132 yaml fixed
• df2cc76 by @yegor256: #132 year fixed
• 8a0e65d by @yegor256: #132 yaml lint
• 0afb196 by @yegor256: #132 md trailing spaces
• d455203 by @yegor256: #132 year up
• ddce699 by @yegor256: #132 md fix
• 7d50100 by @yegor256: #132 java9 hack
• e86c579 by @yegor256: #132 up
• bc23c1a by @yegor256: #132 extra checks
• 5db31e4 by @yegor256: #132 new jcabi-xml
• and 58 more...

Released by Rultor 2.0-SNAPSHOT, see build log