ci: use OIDC for Codecov uploads

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

.github/workflows/test.yml

@@ -17,6 +17,9 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write # for Codecov authentication
     steps:
       -
         name: Checkout
@@ -32,4 +35,4 @@ jobs:
         uses: codecov/codecov-action@0b35c9ecc4f0529d0eb674914510c22f85b196b4 # v7.1.0
         with:
           files: ./coverage/clover.xml
-          token: ${{ secrets.CODECOV_TOKEN }}
+          use_oidc: true