Bump the python-dependencies group with 2 updates

Updates the requirements on [rich](https://github.com/Textualize/rich) and [pytest-cov](https://github.com/pytest-dev/pytest-cov) to permit the latest version.

Updates `rich` to 14.2.0
- [Release notes](https://github.com/Textualize/rich/releases)
- [Changelog](https://github.com/Textualize/rich/blob/master/CHANGELOG.md)
- [Commits](Textualize/rich@v13.0.0...v14.2.0)

Updates `pytest-cov` to 7.0.0
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v5.0.0...v7.0.0)

---
updated-dependencies:
- dependency-name: rich
  dependency-version: 14.2.0
  dependency-type: direct:production
  dependency-group: python-dependencies
- dependency-name: pytest-cov
  dependency-version: 7.0.0
  dependency-type: direct:production
  dependency-group: python-dependencies
...

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

Author: dependabot[bot]

pyproject.toml

@@ -26,7 +26,7 @@ requires-python = ">=3.9"
 dependencies = [
     "httpx ~= 0.28",                                 # better HTTP requests
     'bokeh ~= 2.4; platform_system != "Emscripten"', # interactive plots from datalab directly
-    "rich ~= 13.0",                                  # nicer terminal output
+    "rich >= 13,< 15",                                  # nicer terminal output
     "numpy < 2",                                     # upper pin for numpy due to bad pins in bokeh
 ]
 
@@ -35,7 +35,7 @@ dependencies = [
 dev = [
     "pre-commit >= 3,< 5",
     "pytest ~= 8.0",
-    "pytest-cov >= 5,< 7",
+    "pytest-cov >= 5,< 8",
     "respx ~= 0.22",
 ]