Fix typo in string/regex body parsing when allowing interpolation
Fix typo in string/regex body parsing when allowing interpolation

tree-sitter/tree-sitter-ruby,tree-sitter/tree-sitter-ruby,tree-sitter/tree-sitter-ruby,tree-sitter/tree-sitter-ruby,tree-sitter/tree-sitter-ruby,tree-sitter/tree-sitter-ruby,tree-sitter/tree-sitter-ruby,tree-sitter/tree-sitter-ruby