TAB/UNTAB not supported in the grammar

See #26, release log:

• a073f42 by @yegor256: #26 up
• c3a0442 by @yegor256: #26 up
• 64234ca by @yegor256: #26 up
• bfd282f by @yegor256: #26 vscode up
• ffbcb02 by @yegor256: #26 vscode up
• 5b1152d by @yegor256: #26 merge
• b49e4ad by @yegor256: #26 merge
• c0b282b by @yegor256: #26 merge
• bda611f by @yegor256: #26 up some versions
• 159924f by @yegor256: Merge pull request #28 from ob...
• 8b208de by @yegor256: #26: Add parsing support for '...
• c3427ff by @yegor256: #26: Remove error listeners fr...
• 8f904f0 by @yegor256: #26: Refactor IndentationLexer...
• 1f7b619 by @yegor256: #26: Add IndentationLexer with...
• 52862a9 by @renovate[bot]: Update jest monorepo to v30
• 4afcaff by @yegor256: #26: Update parser test with a...

Released by Rultor 2.0-SNAPSHOT, see build log