Merge pull request #1812 from VWS-Python/dependabot/pip/sphinx-substitution-extensions-2025.12.15

Bump sphinx-substitution-extensions from 2025.11.17 to 2025.12.15

Author: github-actions[bot]

pyproject.toml

@@ -69,7 +69,7 @@ optional-dependencies.dev = [
     "sphinx-inline-tabs==2023.4.21",
     "sphinx-lint==1.0.2",
     "sphinx-pyproject==0.3.0",
-    "sphinx-substitution-extensions==2025.11.17",
+    "sphinx-substitution-extensions==2025.12.15",
     "sphinxcontrib-spelling==8.0.2",
     "ty==0.0.1a34",
     "types-pyyaml==6.0.12.20250915",