build(deps): bump sphinx from 8.1.3 to 8.2.1

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 8.1.3 to 8.2.1.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/v8.2.1/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v8.1.3...v8.2.1)

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

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

requirements.in

@@ -25,7 +25,7 @@ requests-mock==1.12.1
 requests==2.32.3
 ruff==0.9.6
 sentry-sdk==2.22.0
-Sphinx==8.1.3
+Sphinx==8.2.1
 sphinx-rtd-theme==3.0.2
 sphinxcontrib-httpdomain==1.8.1
 werkzeug==3.1.3

requirements.txt

@@ -837,6 +837,10 @@ requests-mock==1.12.1 \
     --hash=sha256:b1e37054004cdd5e56c84454cc7df12b25f90f382159087f4b6915aaeef39563 \
     --hash=sha256:e9e12e333b525156e82a3c852f22016b9158220d2f47454de9cae8a77d371401
     # via -r requirements.in
+roman-numerals-py==3.1.0 \
+    --hash=sha256:9da2ad2fb670bcf24e81070ceb3be72f6c11c440d73bd579fbeca1e9f330954c \
+    --hash=sha256:be4bf804f083a4ce001b5eb7e3c0862479d10f94c936f6c4e5f250aa5ff5bd2d
+    # via sphinx
 rsa==4.9 \
     --hash=sha256:90260d9058e514786967344d0ef75fa8727eed8a7d2e43ce9f4bcf1b536174f7 \
     --hash=sha256:e38464a49c6c85d7f1351b0126661487a7e0a14a50f1675ec50eb34d4f20ef21
@@ -882,9 +886,9 @@ snowballstemmer==2.2.0 \
     --hash=sha256:09b16deb8547d3412ad7b590689584cd0fe25ec8db3be37788be3810cbf19cb1 \
     --hash=sha256:c8e1716e83cc398ae16824e5572ae04e0d9fc2c6b985fb0f900f5f0c96ecba1a
     # via sphinx
-sphinx==8.1.3 \
-    --hash=sha256:09719015511837b76bf6e03e42eb7595ac8c2e41eeb9c29c5b755c6b677992a2 \
-    --hash=sha256:43c1911eecb0d3e161ad78611bc905d1ad0e523e4ddc202a58a821773dc4c927
+sphinx==8.2.1 \
+    --hash=sha256:b5d2bb3cdf6207fcacde9f92085d2b97667b05b9c346eaec426ca4be8af505e9 \
+    --hash=sha256:e4b932951b9c18b039f73b72e4e63afe967d90408700ec222b981ac24647c01e
     # via
     #   -r requirements.in
     #   sphinx-rtd-theme