Bump codecov

Author: gdalle

.github/workflows/test.yml

@@ -21,8 +21,7 @@ jobs:
       - uses: julia-actions/julia-buildpkg@latest
       - uses: julia-actions/julia-runtest@latest
       - uses: julia-actions/julia-processcoverage@v1
-        env:
-          DISABLE_AMEND_COVERAGE_FROM_SRC: yes
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v4
         with:
           file: ./lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}