Use quick-xml to deserialize pom files

Uses quick-xml crate for deserialize pom files. It attempts to automatically detect the encoding and will fallback to utf-8 which does successfully parse the file.

Closes https://github.com/phylum-dev/cli/issues/1386

Checklist

[x] Does this PR have an associated issue (i.e., closes #<issueNum> in description above)?
[x] Have you ensured that you have met the expected acceptance criteria?
[x] Have you created sufficient tests?
[x] Have you updated all affected documentation?
[x] Have you updated CHANGELOG.md (or extensions/CHANGELOG.md), if applicable

phylum-dev / cli

Use quick-xml to deserialize pom files #1387

Checklist