`MjSafe` `classDir` option has incorrect default value

See #4987, release log:

• 752b152 by @yegor256: Merge pull request #5002 from ...
• dd69dd3 by @yegor256: Merge pull request #4999 from ...
• 4e50f6e by @renovate[bot]: chore(deps): update dependency...
• 5c4e714 by @yegor256: Merge pull request #5000 from ...
• 69af94c by @yegor256: Merge pull request #5001 from ...
• 4b56dbc by @maxonfjvipon: bug(#4218): optimize eo:escape...
• 9527dda by @renovate[bot]: fix(deps): update dependency o...
• 89aef7e by @rultor: fix(deps): update dependency o...
• 424dd13 by @renovate[bot]: fix(deps): update dependency o...
• 5f271b5 by @renovate[bot]: fix(deps): update dependency o...
• a334466 by @renovate[bot]: fix(deps): update dependency o...
• 5fc0d32 by @yegor256: Merge pull request #4992 from ...
• 44e542d by @yegor256: Merge pull request #4996 from ...
• 34a673f by @yegor256: Merge pull request #4994 from ...
• 1c52675 by @renovate[bot]: chore(deps): update dependency...
• f632633 by @maxonfjvipon: bug(#4584): resize on writing ...
• 30812c2 by @renovate[bot]: chore(deps): update zerocracy/...
• 9dd16e6 by @renovate[bot]: chore(deps): update dependency...
• 58196b2 by @yegor256: Merge pull request #4988 from ...
• 6e9a8bf by @maxonfjvipon: bug(#4987): fixed classedDir
• and 25 more...

Released by Rultor 2.0-SNAPSHOT, see build log