Switch to ruff linter from lintlizard

The latter is unmaintained and currently incompatible with python 3.12.

Author: mpessas

.github/workflows/test.yaml

@@ -22,7 +22,7 @@ jobs:
       - name: Lint code
         run: |
           pip install -c requirements.txt -r requirements-lint.txt
-          lintlizard --ci
+          ruff check tasktiger tests
 
   # Run tests
   test:

requirements-lint.txt

@@ -1,2 +1,2 @@
-lintlizard==0.26.0
 types-redis
+ruff==0.11.11