Bump weasyprint from 64.0 to 64.1 in /src/requirements

Bumps [weasyprint](https://github.com/Kozea/WeasyPrint) from 64.0 to 64.1.
- [Release notes](https://github.com/Kozea/WeasyPrint/releases)
- [Changelog](https://github.com/Kozea/WeasyPrint/blob/main/docs/changelog.rst)
- [Commits](Kozea/WeasyPrint@v64.0...v64.1)

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

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

src/requirements/production.txt

@@ -42,4 +42,4 @@ Pillow==11.1.0
 numpy==2.2.3
 
 django-weasyprint==2.3.1
-weasyprint==64.0
+weasyprint==64.1