remove codecov step as it adds lots of troubles for little value

.github/workflows/CI.yml

@@ -79,7 +79,7 @@ jobs:
           args: --all-features
 
   test-minimal-versions:
-    needs: check
+    needs: check-minimal-versions
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -142,23 +142,6 @@ jobs:
       - name: cargo hack check
         run: cargo hack check --each-feature --no-dev-deps --workspace
 
-  test-codecov:
-    name: coverage
-    runs-on: ubuntu-latest
-    container:
-      image: xd009642/tarpaulin:develop-nightly
-      options: --security-opt seccomp=unconfined
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v3
-      - name: Generate code coverage
-        run: |
-          cargo +nightly tarpaulin --verbose --all-features --examples --all-targets --workspace --timeout 120 --out Xml
-      - name: Upload to codecov.io
-        uses: codecov/codecov-action@v2
-        with:
-          fail_ci_if_error: true
-
   dependencies-are-sorted:
     runs-on: ubuntu-latest
     steps: