Use Coveralls fork

composer.json

@@ -18,11 +18,14 @@
         }
     ],
     "config": {
-        "preferred-install": {
-            "*": "dist"
-        },
         "sort-packages": true
     },
+    "repositories": [
+        {
+            "type": "vcs",
+            "url": "https://github.com/simPod/php-coveralls"
+        }
+    ],
     "require": {
         "php-64bit": "^7.3",
         "guzzlehttp/promises": "^1.3",
@@ -36,14 +39,14 @@
         "cdn77/coding-standard": "^3.0",
         "infection/infection": "^0.16.0",
         "nyholm/psr7": "^1.2",
+        "php-coveralls/php-coveralls": "dev-add-support-for-github-actions",
         "php-http/curl-client": "^2.1",
         "phpstan/extension-installer": "^1.0",
         "phpstan/phpstan": "0.12.25",
         "phpstan/phpstan-phpunit": "0.12.8",
         "phpstan/phpstan-strict-rules": "0.12.2",
         "phpunit/phpunit": "^9.0",
         "psalm/plugin-phpunit": "^0.10.0",
-        "simpod/php-coveralls-mirror": "^3.0",
         "thecodingmachine/phpstan-safe-rule": "^1.0",
         "vimeo/psalm": "^3.9"
     },