Build(deps): Bump nh3 from 0.3.0 to 0.3.1

Bumps nh3 from 0.3.0 to 0.3.1.

---
updated-dependencies:
- dependency-name: nh3
  dependency-version: 0.3.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

constraints.txt

@@ -30,7 +30,7 @@ markdown-it-py==3.0.0
 MarkupSafe==3.0.3
 mdurl==0.1.2
 more-itertools==10.8.0
-nh3==0.3.0
+nh3==0.3.1
 packaging==25.0
 pluggy==1.6.0
 Pygments==2.19.2