Add PHP 8.0 Support (#11)

Author: bensinclair

.github/workflows/tests.yml

@@ -13,7 +13,7 @@ jobs:
     timeout-minutes: 10
     strategy:
       matrix:
-        php-versions: [ '7.0', '7.1', '7.2', '7.3', '7.4' ]
+        php-versions: [ '7.3', '7.4', '8.0' ]
     name: PHP ${{ matrix.php-versions }}
 
     steps:

composer.json

@@ -4,14 +4,14 @@
   "type": "library",
   "license": "MIT",
   "require": {
-    "php": ">=7.0",
+    "php": ">=7.3",
     "elvanto/picodb": "^2.0"
   },
   "autoload": {
     "psr-4": {"PicoMapper\\": "src/"}
   },
   "require-dev": {
-    "phpunit/phpunit": "6.5.14"
+    "phpunit/phpunit": "9.3.*"
   },
   "scripts": {
     "test": "phpunit"