Bump uproot from 4.2.0 to 4.2.2 in /extra_requirements (#349)

Bumps [uproot](https://github.com/scikit-hep/uproot4) from 4.2.0 to 4.2.2.
- [Release notes](https://github.com/scikit-hep/uproot4/releases)
- [Commits](scikit-hep/uproot5@4.2.0...4.2.2)

---
updated-dependencies:
- dependency-name: uproot
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Joran R. Angevaare <jorana@nikhef.nl>

extra_requirements/requirements-tests.txt

@@ -40,4 +40,4 @@ tqdm==4.63.1
 xarray==2022.3.0
 utilix==0.6.6
 zstd==1.5.0.4                                   # Strax dependency
-uproot==4.2.0
+uproot==4.2.2