Enable secret key in compathelper runs (#242)

Author: lkdvos

.github/workflows/CompatHelper.yml

@@ -41,5 +41,5 @@ jobs:
         shell: julia --color=yes {0}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          # COMPATHELPER_PRIV: ${{ secrets.DOCUMENTER_KEY }}
+          COMPATHELPER_PRIV: ${{ secrets.DOCUMENTER_KEY }}
           # COMPATHELPER_PRIV: ${{ secrets.COMPATHELPER_PRIV }}