Try unversioned lint

Author: jeromekelleher

.github/workflows/lint.yml

@@ -5,6 +5,6 @@ on:
 
 jobs:
   Lint:
-    uses: tskit-dev/.github/.github/workflows/lint.yml@v14
+    uses: tskit-dev/.github/.github/workflows/lint.yml@main
     with:
       pyproject-directory: python