v0.18.3

Fixed

• Blank lines inside an indented heredoc/nowdoc in a CRLF file no longer emit a spurious "Invalid body indentation level" error. A blank line in a CRLF source still carries its \r after splitting on \n, so the indentation check saw a non-empty line without the closing marker's indent; PHP's scanner treats a line that reaches \r/\n before any non-whitespace as empty (php-rs-parser).