Fix tests and lint

Author: staticdev

.github/workflows/lint.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.9"]
+        python-version: ["3.11"]
 
     steps:
       - uses: actions/checkout@v2

tests/unit/test_importable.py

@@ -31,9 +31,12 @@ def test_importable():
     import isort.stdlibs.py2
     import isort.stdlibs.py3
     import isort.stdlibs.py27
-    import isort.stdlibs.py35
     import isort.stdlibs.py36
     import isort.stdlibs.py37
+    import isort.stdlibs.py38
+    import isort.stdlibs.py39
+    import isort.stdlibs.py310
+    import isort.stdlibs.py311
     import isort.utils
     import isort.wrap
     import isort.wrap_modes