Dropped support for PHP 7.1

Author: PHLAK

.github/workflows/test-suite.yaml

@@ -36,7 +36,7 @@ jobs:
 
     strategy:
       matrix:
-        php-versions: ['7.1', '7.2', '7.3', '7.4', '8.0']
+        php-versions: ['7.2', '7.3', '7.4', '8.0']
 
     steps:
       - name: Checkout Repository

composer.json

@@ -23,10 +23,9 @@
         "issues": "https://github.com/PHLAK/SemVer/issues"
     },
     "require": {
-        "php": ">=7.1"
+        "php": ">=7.2"
     },
     "require-dev": {
-        "php": ">=7.2",
         "phlak/coding-standards": "^2.0",
         "psy/psysh": "^0.10",
         "vimeo/psalm": "^4.3",