Fix Starlette CI failures #7778

  × No solution found when resolving dependencies:
  ╰─▶ Because starlette>=1.7.0 depends on anyio>=4.0.0,<5 and you require
      anyio<4.0.0, we can conclude that your requirements and starlette>=1.7.0
      are incompatible.
      And because you require starlette==1.7.0, we can conclude that your
      requirements are unsatisfiable.