www/py-dj60-strawberry-graphql-django: Update to 0.88.0
Changelogs since 0.87.0:
https://github.com/strawberry-graphql/strawberry-django/releases/tag/0.88.0
https://github.com/strawberry-graphql/strawberry-django/releases/tag/0.87.1
MFH: 2026Q3
(cherry picked from commit 53f821fce67fa943e7e25e05d985259ecde90d23)