test: add filesystem vfat check (1st try)

.github/workflows/test.yml

@@ -67,6 +67,24 @@ jobs:
       - name: Test with newest Python on latest Ubuntu
         run: tox -c pyproject.toml -e py
 
+  test-ubuntu-python-newest-with-vfat:
+    name: Test Ubuntu:latest Python:newest vfat
+    needs: [lint, test-ubuntu-python-newest]
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        python-version: ['3.14']
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v5
+      - uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install Test dependencies
+        run: pip install tox
+      - name: Test with newest Python on latest Ubuntu
+        run: tox -c pyproject.toml -e py_filesystem_vfat
+
   test-python-32bit:
     name: Test Ubuntu:latest Python:32-bit
     needs: [lint, test-ubuntu-python-newest, integ-test]
@@ -229,7 +247,7 @@ jobs:
   js-test:
     name: JS Type Check
     runs-on: ubuntu-latest
-    needs: test-ubuntu-python-newest
+    needs: [test-ubuntu-python-newest, test-ubuntu-python-newest-with-vfat]
     steps:
       - uses: actions/checkout@v5
       - uses: actions/setup-node@v5