Use selector thread from anyio

Author: davidbrochart

.github/workflows/ci.yml

@@ -55,6 +55,9 @@ jobs:
         timeout-minutes: 15
         if: ${{  startsWith(matrix.os, 'windows') }}
         run: |
+          hatch run test:pip install git+https://github.com/davidbrochart/anyio.git@selector-thread#egg=anyio --ignore-installed
+          hatch run test:pip install git+https://github.com/davidbrochart/zmq-anyio.git@anyio-selector-thread#egg=zmq_anyio --ignore-installed
+          hatch run test:pip list
           hatch run cov:nowarn || hatch run test:nowarn --lf
 
       - name: Check Launcher

pyproject.toml

@@ -319,3 +319,6 @@ ignore = ["W002"]
 
 [tool.repo-review]
 ignore = ["PY007", "PP308", "GH102", "MY101"]
+
+[tool.hatch.metadata]
+allow-direct-references = true