Update quick-xml requirement from 0.26 to 0.27 in /backend

[dependabot[bot]]

Updates the requirements on quick-xml to permit the latest version.

Release notes

Sourced from quick-xml's releases.

Improvements in serde deserializer and MSRV bumped to 1.52

What's Changed

MSRV was increased from 1.46 to 1.52 in #521.

New Features

• #521: Implement Clone for all error types. This required changing Error::Io to contain Arc<std::io::Error> instead of std::io::Error since std::io::Error does not implement Clone.

Bug Fixes

• #490: Ensure that serialization of map keys always produces valid XML names. In particular, that means that maps with numeric and numeric-like keys (for example, "42") no longer can be serialized because [XML name] cannot start from a digit
• #500: Fix deserialization of top-level sequences of enums, like

  <?xml version="1.0" encoding="UTF-8"?>
  <!-- list of enum Enum { A, B, С } -->
  <A/>
  <B/>
  <C/>
  

• #514: Fix wrong reporting Error::EndEventMismatch after disabling and enabling .check_end_names
• #517: Fix swapped codes for \r and \n characters when escaping them
• #523: Fix incorrect skipping text and CDATA content before any map-like structures in serde deserializer, like

  unwanted text<struct>...</struct>
  

• #523: Fix incorrect handling of xs:lists with encoded spaces: they still act as delimiters, which is confirmed also by mature XmlBeans Java library
• #473: Fix a hidden requirement to enable serde's derive feature to get quick-xml's serialize feature for edition = 2021 or resolver = 2 crates

Misc Changes

• #490: Removed $unflatten= special prefix for fields for serde (de)serializer, because:

  • it is useless for deserializer
  • serializer was rewritten and does not require it anymore

  This prefix allowed you to serialize struct field as an XML element and now replaced by a more thoughtful system explicitly indicating that a field should be serialized as an attribute by prepending @ character to its name

• #490: Removed $primitive= prefix. That prefix allowed you to serialize struct field as an attribute instead of an element and now replaced by a more thoughtful system explicitly indicating that a field should be serialized as an attribute

... (truncated)

Changelog

Sourced from quick-xml's changelog.

0.27.0 -- 2022-12-25

New Features

• #521: Implement Clone for all error types. This required changing Error::Io to contain Arc<std::io::Error> instead of std::io::Error since std::io::Error does not implement Clone.

Bug Fixes

• #490: Ensure that serialization of map keys always produces valid XML names. In particular, that means that maps with numeric and numeric-like keys (for example, "42") no longer can be serialized because [XML name] cannot start from a digit
• #500: Fix deserialization of top-level sequences of enums, like

  <?xml version="1.0" encoding="UTF-8"?>
  <!-- list of enum Enum { A, B, С } -->
  <A/>
  <B/>
  <C/>
  

• #514: Fix wrong reporting Error::EndEventMismatch after disabling and enabling .check_end_names
• #517: Fix swapped codes for \r and \n characters when escaping them
• #523: Fix incorrect skipping text and CDATA content before any map-like structures in serde deserializer, like

  unwanted text<struct>...</struct>
  

• #523: Fix incorrect handling of xs:lists with encoded spaces: they still act as delimiters, which is confirmed also by mature XmlBeans Java library
• #473: Fix a hidden requirement to enable serde's derive feature to get quick-xml's serialize feature for edition = 2021 or resolver = 2 crates

Misc Changes

• #490: Removed $unflatten= special prefix for fields for serde (de)serializer, because:

  • it is useless for deserializer
  • serializer was rewritten and does not require it anymore

  This prefix allowed you to serialize struct field as an XML element and now replaced by a more thoughtful system explicitly indicating that a field should be serialized as an attribute by prepending @ character to its name

• #490: Removed $primitive= prefix. That prefix allowed you to serialize struct field as an attribute instead of an element and now replaced by a more thoughtful system explicitly indicating that a field should be serialized as an attribute by prepending @ character to its name

• #490: In addition to the $value special name for a field a new $text special name was added:

... (truncated)

Commits

• f63910d Release 0.27.0
• d1908e6 Merge pull request #528 from Mingun/doc
• 66275cc Add an example for deserializing wrapped lists
• c521a2f Add documentation for mapping from XML to Rust used by deserializer
• 44a4c69 Merge pull request #524 from Mingun/serde
• c205f1d Fix #473: add explicit serde feature that is independent from dependency
• e877f4f Merge pull request #523 from Mingun/fix-bugs
• 8283121 Add some comments about deserializing sequences and give a more descriptive n...
• daa6526 Fix incorrect handling of xs:lists with encoded spaces: they still act as d...
• 1373eb1 Rename next_text to read_string because new name are better describes the...
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