One Commit, One Result: django-asv Adds Ubuntu Support

This is a quiet one, but not an unimportant one. The django-asv project added results for ubuntu-latest to its continuous benchmark suite [1]. That means ongoing performance tracking now covers default GitHub Actions runners, which is what many of you deploy against. The commit is a housekeeping item with a [skip ci] tag [1], so no new tests ran, but the data flow remains intact. If you rely on asv for django performance regression checks, this expands your coverage at no cost. Not a patch, not a breaking change, just a small signal that this project keeps its benchmarks honest. Nothing else moved across the stack today.