👷 Fix broken setup workflow

Also remove the Python 2 io import

.github/workflows/setup.yml

@@ -25,7 +25,7 @@ jobs:
       run: |
         python -m venv venv
         . venv/bin/activate
-        pip install dist/kivy-ios-*.tar.gz
+        pip install dist/kivy_ios-*.tar.gz
         pip install Cython==0.29.36
         brew install autoconf automake libtool pkg-config
     - name: Basic toolchain commands

kivy_ios/toolchain.py

@@ -16,7 +16,6 @@
 import zipfile
 import tarfile
 import importlib
-import io
 import json
 import shutil
 import fnmatch
@@ -99,7 +98,7 @@ def __init__(self, filename):
         self.data = {}
         if exists(filename):
             try:
-                with io.open(filename, encoding='utf-8') as fd:
+                with open(filename, encoding='utf-8') as fd:
                     self.data = json.load(fd)
             except ValueError:
                 logger.warning("Unable to read the state.db, content will be replaced.")