Pin anyio in tests (dep of httpx), because new major 4.0.0 breaks tests. (#2336)

Author: antonpirker

tox.ini

@@ -279,6 +279,7 @@ deps =
     # FastAPI
     fastapi: fastapi
     fastapi: httpx
+    fastapi: anyio<4.0.0 # thats a dep of httpx
     fastapi: pytest-asyncio
     fastapi: python-multipart
     fastapi: requests
@@ -309,6 +310,7 @@ deps =
 
     # HTTPX
     httpx: pytest-httpx
+    httpx: anyio<4.0.0 # thats a dep of httpx
     httpx-v0.16: httpx>=0.16,<0.17
     httpx-v0.17: httpx>=0.17,<0.18
     httpx-v0.18: httpx>=0.18,<0.19
@@ -412,6 +414,7 @@ deps =
     starlette: python-multipart
     starlette: requests
     starlette: httpx
+    starlette: anyio<4.0.0 # thats a dep of httpx
     starlette: jinja2
     starlette-v0.20: starlette>=0.20.0,<0.21.0
     starlette-v0.22: starlette>=0.22.0,<0.23.0