Pylint: Switch to YAML-based config, fix failures

See also: ci-support!17

.gitlab-ci.yml

@@ -53,13 +53,12 @@ Pylint:
   script:
   - EXTRA_INSTALL="pymbolic matplotlib mpi4py"
   - py_version=3
-  - curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/prepare-and-run-pylint.sh
+  - curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/pylint-flexible-config/prepare-and-run-pylint.sh
   - ". ./prepare-and-run-pylint.sh pytools test/test_*.py"
   tags:
   - python3
   except:
   - tags
-  allow_failure: true
 
 Documentation:
   script: