Bump black, pylint, Ubuntu (CI) and Python (CI)

Moving a few years into the future. I just bumped everything to the most
stable version.

The Python version I left as 3.10, because 3.11 is too new and I'm not
an early adopter.

The change in the `.pylintrc` file was related to this warning:

- R0022: Useless option value for '--disable', 'bad-continuation' was
  removed from pylint, see pylint-dev/pylint#3571.
  (useless-option-value)

.github/workflows/check.yaml

@@ -8,12 +8,12 @@ jobs:
 
   # For linting, any one Python version is enough
   lint:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
         with:
-          python-version: 3.6.15
+          python-version: 3.10.8
       - run: make lint
 
   # For testing, we try to use as many versions as possible. Here we're

.pylintrc

@@ -6,7 +6,6 @@ disable=
     suppressed-message,
     fixme,
     missing-docstring,
-    bad-continuation,  # incompatible with black
     unspecified-encoding,  # we still support python2
     consider-using-f-string,  # we still support python2
 

requirements-dev.txt

@@ -1,2 +1,2 @@
-pylint == 2.12.2
-black == 21.12b0
+pylint == 2.15.5
+black == 22.10.0