Add CodeCov token (#238)

Author: viktorprogger

.github/workflows/build.yml

@@ -25,6 +25,8 @@ name: build
 jobs:
   phpunit:
     uses: yiisoft/actions/.github/workflows/phpunit.yml@master
+    secrets:
+      codecovToken: ${{ secrets.CODECOV_TOKEN }}
     with:
       ini-values: pcov.directory=$GITHUB_WORKSPACE, pcov.exclude=#^(?!($GITHUB_WORKSPACE/config/|$GITHUB_WORKSPACE/src/)).*#
       os: >-