replace coverage checker

Author: TomK

.github/workflows/unit-test.yml

@@ -19,5 +19,8 @@ jobs:
           tools: composer, phpunit
       - run: composer install -n --prefer-dist
       - run: php vendor/phpunit/phpunit/phpunit -c phpunit.xml --coverage-clover=coverage.xml
-      - name: Codecov
-        uses: codecov/codecov-action@v1
+      - name: PHPUnit Coverage Check
+        uses: ericsizemore/[email protected]
+        with:
+          clover_file: "coverage.xml"
+          threshold: 70