chore(deps-dev): bump xenon from 0.8.0 to 0.9.0 (#57)

Bumps [xenon](https://github.com/rubik/xenon) from 0.8.0 to 0.9.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/rubik/xenon/blob/master/CHANGELOG">xenon's
changelog</a>.</em></p>
<blockquote>
<h2>0.9.0 (Feb 24, 2022)</h2>
<ul>
<li>Update pinned requirements to allow PyYAML v6</li>
<li>Monkey-patch test module to work around 'paramunittest' issues on
Python 3.10</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/rubik/xenon/commit/71f39a3f3ffc967a3d3d7fa15a9917e92e7235a1"><code>71f39a3</code></a>
chore: bump to v0.9.0</li>
<li><a
href="https://github.com/rubik/xenon/commit/e608e79a20eaaf631a72246550942c7791f74de0"><code>e608e79</code></a>
fix(deps): bump PyYAML requirements</li>
<li><a
href="https://github.com/rubik/xenon/commit/35f5af7ea7d931ef1b38b868c237a6b379590bbf"><code>35f5af7</code></a>
fix(tests): monkey-patch collections to work around paramunittest module
issue</li>
<li><a
href="https://github.com/rubik/xenon/commit/e6df26c97aba8d36d760890741e32ccfe4f37977"><code>e6df26c</code></a>
chore: upgrade to Python 3.10</li>
<li><a
href="https://github.com/rubik/xenon/commit/2991cb8a4b0a2a9242ccc3ebc4ee316293e58bc2"><code>2991cb8</code></a>
chore: update changelog</li>
<li>See full diff in <a
href="https://github.com/rubik/xenon/compare/v0.8.0...v0.9.0">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=xenon&package-manager=pip&previous-version=0.8.0&new-version=0.9.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

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-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

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 merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@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)


</details>

pyproject.toml

@@ -20,7 +20,7 @@ toml = "^0.10.2"
 types-toml = "^0.10.1"
 twine = "^3.4.2"
 radon = "^5.1.0"
-xenon = "^0.8.0"
+xenon = "^0.9.0"
 
 [tool.poetry.scripts]
 report2junit = 'report2junit:main'