Update roxmltree requirement from 0.19 to 0.20

[dependabot]

Updates the requirements on roxmltree to permit the latest version.

Changelog

Sourced from roxmltree's changelog.

[0.20.0] - 2024-05-23

Added

• Attribute::range, Attribute::range_qname, Attribute::range_value. Thanks to @​Jayonas

Changed

• Attribute::position is deprecated now.
• The positions build feature uses a bit more memory now to better preserve attribute ranges.

[0.19.0] - 2023-11-18

Changed

• xmlparser is no longer a dependency and its fork is used internally.
• ~5% faster parsing.
• Fallback to Rc when Arc isn't available.
• Bump MSRV to 1.60
• Bump edition to 2021
• Error variants have changed quite a lot.
• XML declaration validation was simplified. We no longer check for attributes content. Meaning that version, encoding and standalone can contain any value now. But we still do check attribute names and order. And while we did validated those attributes before, they weren't really affecting the parser in any way. Therefore the parsing behavior is mostly unchanged.

Fixed

• ParsingOptions::allow_dtd = false would not trigger an error when an empty DTD was present.

Removed

• The xmlparser dependency.

[0.18.1] - 2023-09-30

Added

• ExpandedName::from_static. Thanks to @​WhyNotHugo

Fixed

• Replace \r in CDATA as well.
• no_std build. Thanks to @​wenyuzhao

[0.18.0] - 2023-02-04

Added

• StringStorage that exposes an internal string storage.
• Allocated strings are stored as Arc<str> and not String now.
• Node::text_storage
• Node::tail_storage
• Attribute::value_storage
• Node::range

Removed

• Node::position. Use Node::range instead.

... (truncated)

Commits

• 6dffb22 Version bump.
• dfed9be Add range_qname and range_value methods to Attribute.
• 6e7293b Add Attribute.range() method.
• 0a6e7af Replace XML 1.0 with just XML.
• 8f4b3a6 Fix changelog.
• See full diff in compare view

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