deps(backend)(deps): bump async_zip from 0.0.17 to 0.0.18 in /backend

[dependabot]

Bumps async_zip from 0.0.17 to 0.0.18.

Release notes

Sourced from async_zip's releases.

v0.0.18

Release notes:

• Start consuming a data descriptor for read::stream, removing a previous hard-error. Note that this data descriptor currently gets voided, meaning CRC/length checks do not get performed.
• Removes ZipEntryBuilder::sizes(), replacing with separate compressed and uncompressed setters.
• Deletes the ZIP APPNOTE which was previously included in the repository as it's disallowed from redistribution.
• Fixes the EOCDR locator potentially skipping bytes if read() calls didn't fully fill the internal buffer.
• Introduces ZipFileWriter's write_entry_whole_precompressed() and write_entry_stream_precompressed(), allowing for pre-compressed data to be provided.
• Added compress() and crc32() helpers in base::write to help with pre-compression. The specifics of these are likely to change in future versions. Added a CRC32 setter for ZipEntryBuilder also.

Commits

• 95545ed Bump version
• 81086e8 Introduce pre-compressed stream writing
• 7b4735a Introduce write_entry_whole_precompressed()
• 96b2952 Refactor EntryWholeWriter
• df5fdd8 fix: avoid skipping bytes in the EOCDR search
• 5a06499 Fix tests
• 3c17882 Update thiserror requirement from 1 to 2
• 351afcb Update sanitize-filename requirement from 0.5 to 0.6
• 527bda9 Revert "Introduce tracing, add util functions, add core raw macro, add core l...
• f60a9d5 Introduce tracing, add util functions, add core raw macro, add core lfh logic
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)