Bump the python-requirements group in /envs with 2 updates

Bumps the python-requirements group in /envs with 2 updates: [coverage](https://github.com/nedbat/coveragepy) and [plotly](https://github.com/plotly/plotly.py).


Updates `coverage` from 7.8.0 to 7.8.1
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](coveragepy/coveragepy@7.8.0...7.8.1)

Updates `plotly` from 6.0.1 to 6.1.1
- [Release notes](https://github.com/plotly/plotly.py/releases)
- [Changelog](https://github.com/plotly/plotly.py/blob/main/CHANGELOG.md)
- [Commits](plotly/plotly.py@v6.0.1...v6.1.1)

---
updated-dependencies:
- dependency-name: coverage
  dependency-version: 7.8.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python-requirements
- dependency-name: plotly
  dependency-version: 6.1.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: python-requirements
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

envs/requirements.txt

@@ -1,5 +1,5 @@
 SimpleITK==2.5.0
-coverage==7.8.0
+coverage==7.8.1
 einops==0.8.1
 hydra-core==1.3.2
 jupyterlab==4.4.2
@@ -10,7 +10,7 @@ nbmake==1.5.5
 nibabel==5.3.2
 numpy==1.26.4
 pandas==2.2.3
-plotly==6.0.1
+plotly==6.1.1
 pre-commit==4.2.0
 pydicom==3.0.1
 pytest-cov==6.1.1