Use JuliaLinearAlgebra's Codecov token in CI (#131)

Author: jishnub

.github/workflows/ci.yml

@@ -56,4 +56,5 @@ jobs:
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v4
         with:
+          token: ${{ secrets.CODECOV_TOKEN }}
           file: lcov.info