automatically count the number of files (#1964)

Author: sanderegg

.github/workflows/ci-testing-deploy.yml

@@ -1401,7 +1401,7 @@ jobs:
         run: |
           curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
           chmod +x ./cc-test-reporter
-          ./cc-test-reporter sum-coverage all_coverages/codeclimate.*.json --parts 16
+          ./cc-test-reporter sum-coverage all_coverages/codeclimate.*.json --parts $(ls all_coverages/*.json | wc --lines)
       - name: upload coverages
         run: |
           ./cc-test-reporter upload-coverage