Refresh PHP 7.0 branch

Author: SbWereWolf

composer.json

@@ -46,18 +46,18 @@
     }
   },
   "scripts": {
-    "test": "php ./vendor/phpunit/phpunit/phpunit --configuration ./continuous-integration/phpunit/phpunit.xml --testdox --colors=always",
-    "test-coverage": "php -d xdebug.mode=coverage ./vendor/phpunit/phpunit/phpunit --configuration ./continuous-integration/phpunit/phpunit.xml --testdox --colors=always --coverage-html ./continuous-integration/autotests-coverage-report --coverage-filter ./src",
+    "test": "php ./vendor/phpunit/phpunit/phpunit --configuration ./continuous-integration/phpunit/phpunit.xml --testdox",
+    "test-coverage": "php ./vendor/phpunit/phpunit/phpunit --configuration ./continuous-integration/phpunit/phpunit.xml --testdox --coverage-html ./continuous-integration/autotests-coverage-report --whitelist ./src",
     "check-style": "php ./vendor/bin/phpcs --standard=continuous-integration/phpcs/phpcs.xml -v",
     "fix-style": "php ./vendor/bin/phpcbf --standard=continuous-integration/phpcs/phpcs.xml -v"
   },
   "require-dev": {
-    "phpunit/phpunit": ">=9.5 <9.6",
-    "squizlabs/php_codesniffer": "^3.13",
+    "phpunit/phpunit": ">=6.5 <6.6",
+    "squizlabs/php_codesniffer": "^3.7",
     "sbwerewolf/json-serialize-trait": "^1"
   },
   "require": {
-    "php": ">=7.3 <7.4",
+    "php": ">=7.0 <7.3",
     "ext-xmlreader": "*",
     "ext-libxml": "*"
   }