build(deps): bump furo in the python-packages group

---
updated-dependencies:
- dependency-name: furo
  dependency-version: 2025.7.19
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: python-packages
...

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

Author: dependabot[bot]

poetry.lock

@@ -18,7 +18,7 @@ sphinx-copybutton = "^0.5.2"
 quimb = "^1.11.1"
 openfermion = "^1.7.1"
 ipyparallel = "^9.0.0"
-furo = "^2024.8.6"
+furo = "^2025.7.19"
 myst-nb = "^1.3.0"
 sphinx-autodoc-typehints = "^3.0.1"
 enum-tools = { extras = ["sphinx"], version = "^0.13.0" }