add caching and drop 3.6

Author: mahf708

.github/workflows/test.yaml

@@ -11,11 +11,11 @@ on:
 jobs:
   testing:
 
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-         python-version: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+         python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
     - uses: actions/checkout@v4
@@ -24,6 +24,7 @@ jobs:
       uses: astral-sh/setup-uv@v5
       with:
         python-version: ${{ matrix.python-version }}
+        enable-cache: true
 
     - name: Run tests
       run: uv run pytest -Werror

.gitignore

@@ -3,3 +3,5 @@
 uv.lock
 ctest-build
 dist
+.pytest_cache
+__pycache__