fix: Remove Python 3.8 and 3.9 from CI matrix

3.8 and 3.9 are failing because the pinned dependencies don't support them:
- autopep8==2.3.2 needs Python 3.9+
- bleach==6.3.0 needs Python 3.10+

Both are EOL now anyway (3.8 in Oct 2024, 3.9 in Oct 2025).

Just fixing CI to test 3.10-3.14 for now. Will do a separate PR to formally
drop 3.8/3.9 support with python_requires and README updates.

Author: Iamrodos

.github/workflows/lint.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
 
     steps:
       - name: Checkout repository