moving codecov to token-based (#1228)

Signed-off-by: Jordan Keister <[email protected]>
Upstream-repository: operator-registry
Upstream-commit: efddcb3e6fd7e972235223b63c599691a0321e10

Author: grokspawn

staging/operator-registry/.github/workflows/unit.yaml

@@ -19,7 +19,8 @@ jobs:
           go-version-file: "go.mod"
       - run: make unit
       - run: sed -i'' "s:^github.com/$GITHUB_REPOSITORY/::" coverage.out
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
           files: coverage.out
           functionalities: fixes
+          token: ${{ secrets.CODECOV_TOKEN }}