DRIVERS-2991 Pin to bottle<0.13 to avoid "Address already in use" errors

.evergreen/start-orchestration.sh

@@ -34,6 +34,8 @@ echo "Creating virtual environment 'venv'..."
 venvcreate "${PYTHON:?}" venv
 echo "Creating virtual environment 'venv'... done."
 
+# DRIVERS-2991 bottle 0.13 causes "[Errno 98] Address already in use" errors on some hosts.
+python -m pip install --upgrade 'bottle<0.13'
 # Install from github to get the latest mongo-orchestration, fall back on published wheel.
 # The fallback was added to accommodate versions of Python 3 for which there is no compatible version
 # of the hatchling backend used by mongo-orchestration.