Bump newtonnet from 1.1.1 to 2.0.1

Bumps [newtonnet](https://github.com/THGLab/NewtonNet) from 1.1.1 to 2.0.1.
- [Release notes](https://github.com/THGLab/NewtonNet/releases)
- [Commits](https://github.com/THGLab/NewtonNet/commits/v2.0.1)

---
updated-dependencies:
- dependency-name: newtonnet
  dependency-version: 2.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

tests/requirements-newtonnet.txt

@@ -1,3 +1,3 @@
-newtonnet==1.1.1
+newtonnet==2.0.1
 geodesic-interpolate @ git+https://github.com/virtualzx-nad/geodesic-interpolate.git
 sella==2.3.5