Try without codecov secret

.github/workflows/ci.yml

@@ -58,7 +58,7 @@ jobs:
       RACKET_VERSION: "${{ matrix.racket }}"
       RACKET_CS: "${{ matrix.racket_cs }}"
       COV: "${{ matrix.cov }}"
-      #CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"
+      CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"
     steps:
       - uses: actions/checkout@v2
       - name: Add to $PATH
@@ -75,6 +75,9 @@ jobs:
           echo RACKET_CS="$RACKET_CS"
           echo COV="$COV"
           echo GITHUB_WORSPACE="$GITHUB_WORKSPACE"
+          echo INPUT_CODECOV_TOKEN="$INPUT_CODECOV_TOKEN"
+          echo CODECOV_TOKEN="$CODECOV_TOKEN"
+          printenv || env || set || true
       - name: Install Racket
         run: |
           export RACKET_DIR="$HOME/.racket"