Note to self: actions can just break

Fix actions/upload-artifact#602

Author: Joshix-1

Diff for: .github/workflows/check.yml

@@ -84,6 +84,8 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           path: .coverage
+          if-no-files-found: error
+          include-hidden-files: true
           name: coverage-${{ matrix.python-version }}
 
   test-rustpython:
@@ -108,6 +110,8 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           path: .coverage
+          if-no-files-found: error
+          include-hidden-files: true
           name: coverage-rustpython
 
   mypy: