Bump sphinx-substitution-extensions from 2025.2.19 to 2025.3.3

Bumps [sphinx-substitution-extensions](https://github.com/adamtheturtle/sphinx-substitution-extensions) from 2025.2.19 to 2025.3.3.
- [Release notes](https://github.com/adamtheturtle/sphinx-substitution-extensions/releases)
- [Changelog](https://github.com/adamtheturtle/sphinx-substitution-extensions/blob/main/CHANGELOG.rst)
- [Commits](adamtheturtle/sphinx-substitution-extensions@2025.02.19...2025.03.03)

---
updated-dependencies:
- dependency-name: sphinx-substitution-extensions
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -72,7 +72,7 @@ optional-dependencies.dev = [
     "sphinx-copybutton==0.5.2",
     "sphinx-lint==1.0.0",
     "sphinx-pyproject==0.3.0",
-    "sphinx-substitution-extensions==2025.2.19",
+    "sphinx-substitution-extensions==2025.3.3",
     "sphinxcontrib-spelling==8.0.1",
     "sybil==9.1.0",
     "types-requests==2.32.0.20250301",