Add support for PHPUnit 8 as well as 9 and update test workflow deps

Author: adevade

.github/workflows/tests.yml

@@ -9,14 +9,14 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-version: ["7.3", "7.4"]
+        php-version: ["7.2", "7.3", "7.4"]
 
     steps:
       - name: Checkout
         uses: actions/checkout@v2
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@v1
+        uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-version }}
           coverage: none

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## 1.1.0 - 2020-04-17
+
+### Added
+
+- Added support for PHPUnit `^8|^9`.
+
 ## [1.0.2] - 2020-02-28
 
 ### Changed

composer.json

@@ -21,7 +21,7 @@
         "php": "^7.2"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.0"
+        "phpunit/phpunit": "^8.0|^9.0"
     },
     "autoload": {
         "psr-4": {