updating tests and lock file

Author: Ultimater

.github/workflows/tests.yml

@@ -26,7 +26,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.2', '7.3', '7.4']
+        php-versions: ['7.3', '7.4', '8.0']
     steps:
       - uses: actions/checkout@v1