build: bump sphinx from 8.2.1 to 8.2.3 in the documentation group (#3788)

* build: bump sphinx from 8.2.1 to 8.2.3 in the documentation group

Bumps the documentation group with 1 update: [sphinx](https://github.com/sphinx-doc/sphinx).


Updates `sphinx` from 8.2.1 to 8.2.3
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v8.2.1...v8.2.3)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: documentation
...

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

* chore: adding changelog file 3788.dependencies.md [dependabot-skip]

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: pyansys-ci-bot <[email protected]>

Author: dependabot[bot]

doc/changelog.d/3788.dependencies.md

@@ -0,0 +1 @@
+build: bump sphinx from 8.2.1 to 8.2.3 in the documentation group

pyproject.toml

@@ -101,7 +101,7 @@ doc = [
     "sphinx-gallery==0.19.0",
     "sphinx-jinja==2.0.2",
     "sphinx-notfound-page==1.1.0",
-    "sphinx==8.2.1",
+    "sphinx==8.2.3",
     "sphinxcontrib-websupport==2.0.0",
     "sphinxemoji==0.3.1",
     "vtk==9.3.1",