ci: fix missing source for codecov

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

.github/workflows/test.yml

@@ -15,10 +15,14 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
       -
         name: Test
         uses: docker/bake-action@v6
         with:
+          source: .
           targets: test
       -
         name: Upload coverage