chore(deps): bump xml-rs from 0.8.0 to 0.8.15

[dependabot[bot]]

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Bumps xml-rs from 0.8.0 to 0.8.15.

Changelog

Sourced from xml-rs's changelog.

Version 0.8.7

• Basic parsing of DTD internal subset
• Speed improvements

Version 0.8.6

• Fixed parsing of incorrectly nested comments and processing instructions

Version 0.8.5

• Updated source code to edition 2018 and fixed/updated some Rust idioms.

Version 0.8.4

• Fixed recognition of ?>, ]]> and /> tokens as characters.
• Fixed writer output operations to use write_all to ensure that the data is written fully.
• The document declaration is now written before any characters automatically.

Version 0.8.3

• Added a new parser option, ignore_root_level_whitespace, which makes the parser skip emitting whitespace events outside of the root element when set to true. This helps with certain tasks like canonicalization.

Version 0.8.2

• Added a new parser option, replace_unknown_entity_references, which allows to ignore invalid Unicode code points and replace them with a Unicode "replacement character" during parsing. This can be helpful to deal with e.g. UTF-16 surrogate pairs.
• Added a new emitter option, pad_self_closing, which determines the style of the self-closing elements when they are emitted: <a /> (true) vs <a/> (false).

Version 0.8.1

• Fixed various issues with tests introduced by updates in Rust.
• Adjusted the lexer to ignore contents of the <!DOCTYPE> tag.
• Removed unnecessary unsafety in tests.
• Added tests for doc comments in the readme file.
• Switched to GitHub Actions from Travis CI.

Commits

• 8defd10 Allocate attr name HashSet only if necessary
• e614fc4 Bump
• 618b1a6 Improve speed of duplicate attr test
• de654fe Improve error location
• c4705dd NVD please read this and stop harassing my users
• 2776563 chore: Release xml-rs version 0.8.14
• ca962a9 Explain next_pos wonkiness
• 6c13445 Balance pos pushes when ignoring comments
• 129ab96 Merge pull request #226 from 00xc/unreachable_token
• c09549a Avoid panic when displaying unexpected token error
• Additional commits viewable in compare view

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[asymmetric]

Dep removed in #50

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