Upgrade to PHP 8.1 (#2)

* Updated PHP requirement to >=8.0 and removed mindplay/simple-cache dev-dependency

* Updated to PHPUnit ^9.5 and migrated configuration

* Removed Scrutinizer integration

* Removed composer.lock to avoid locking packages that require PHP >=8.1

* Replaced Travis with Github Actions

.github/workflows/test.yml

@@ -0,0 +1,46 @@
+name: Codeception tests
+
+on: [push]
+
+jobs:
+  build:
+    name: ${{matrix.operating-system}}, PHP ${{ matrix.php }}
+
+    runs-on: ${{ matrix.operating-system }}
+
+    strategy:
+      matrix:
+        operating-system: [ ubuntu-latest, ubuntu-20.04 ]
+        php: [ '8.0', '8.1' ]
+
+    services:
+      postgres:
+        image: postgres
+        env:
+          POSTGRES_DB: kodus_db_cache_test
+          POSTGRES_USER: root
+          POSTGRES_PASSWORD: root
+        ports:
+          - 5432:5432
+
+      mysql:
+        image: mysql
+        env:
+          MYSQL_DATABASE: kodus_db_cache_test
+          MYSQL_ROOT_PASSWORD: root
+        ports:
+          - 3306:3306
+
+    steps:
+      - uses: actions/checkout@master
+
+      - name: Setup PHP
+        uses: nanasess/setup-php@master
+        with:
+          php-version: ${{ matrix.php }}
+
+      - name: Install dependencies
+        run: composer install
+
+      - name: Run tests
+        run: php vendor/bin/phpunit

.gitignore

@@ -4,3 +4,4 @@
 /vendor
 phpunit.xml
 clover.xml
+composer.lock

README.md

@@ -7,7 +7,7 @@ and complete in a single round-trip.
 
 No dependencies beyond the PSR-16 interface.
 
-[![PHP Version](https://img.shields.io/badge/php-7.2%2B-blue.svg)](https://packagist.org/packages/kodus/db-cache)
+[![PHP Version](https://img.shields.io/badge/php-8.0%2B-blue.svg)](https://packagist.org/packages/kodus/db-cache)
 [![Build Status](https://travis-ci.org/kodus/db-cache.svg?branch=master)](https://travis-ci.org/kodus/db-cache)
 [![Code Coverage](https://scrutinizer-ci.com/g/kodus/db-cache/badges/coverage.png?b=master)](https://scrutinizer-ci.com/g/kodus/db-cache/?branch=master)
 [![Code Quality](https://scrutinizer-ci.com/g/kodus/db-cache/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/kodus/db-cache/?branch=master)

composer.json

@@ -13,13 +13,12 @@
         "psr/simple-cache-implementation": "1.0"
     },
     "require": {
-        "php": ">= 7.2",
+        "php": ">= 8.0",
         "psr/simple-cache": "^1",
         "ext-pdo": "*"
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.1.5",
-        "mindplay/simple-cache": "^1.0"
+        "phpunit/phpunit": "^9.5"
     },
     "autoload": {
         "psr-4": {