tests: fix for release candidates (and test on more versions of Python)

Fixes #146

Fixes #146

Includes loosening the constraints on versions used to run tests in CI (e.g.
pytest, coverage) since the older versions don't seem to work on newer Python.
Specifically, coverage 6.2 bombs out with an error on Python 3.11)

.github/workflows/test.yml

@@ -24,11 +24,17 @@ jobs:
             os: "ubuntu-20.04"
           - python-version: "3.10.0"
             os: "ubuntu-20.04"
+          - python-version: "3.11.0"
+            os: "ubuntu-20.04"
+          - python-version: "3.12.0"
+            os: "ubuntu-20.04"
+          - python-version: "3.13.0-rc.2"
+            os: "ubuntu-20.04"
     runs-on: ${{ matrix.os }}
     steps:
       - name: "Checkout"
         uses: "actions/checkout@v3"
-      - uses: "actions/setup-python@v4"
+      - uses: "actions/setup-python@v5"
         with:
           python-version: '${{ matrix.python-version }}'
       - name: "Install bsdcpio"

pyproject.toml

@@ -33,9 +33,6 @@ dev = [
 ]
 ci = [
     "pycryptodome==3.10.1",
-    "coverage==6.2",
-    "pytest==7.0.1",
-    "pytest-cov==3.0.0",
     "stream-unzip==0.0.86",
     "pyzipper==0.3.6",
     # Type checking

test_stream_zip.py

@@ -1388,7 +1388,7 @@ async def test():
 
 
 @pytest.mark.skipif(
-    tuple(int(v) for v in platform.python_version().split('.')) < (3,7,0),
+    tuple(int(v) for v in platform.python_version().split('.')[:2]) < (3,7,0),
     reason="contextvars are not supported before Python 3.7.0",
 )
 def test_copy_of_context_variable_available_in_iterable():