Dependency: Symfony/options-resolver allow ^6.0 (#215)

* composer dependency: symfony/options-resolver allow ^6.0

* add symfony 5 and 6 to build matrix

* use flex to lock symfony version

* use flex to lock symfony version

Author: Jeroeny

.github/workflows/tests.yml

@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        symfony: ['2', '3', '4']
+        symfony: ['4', '5', '6']
 
     steps:
       - name: Checkout code
@@ -85,7 +85,8 @@ jobs:
 
       - name: Install dependencies
         run: |
-          composer require dunglas/symfony-lock:v${{ matrix.symfony }} --no-interaction --no-update
+          composer require --no-update --no-interaction --no-progress symfony/flex
+          composer config extra.symfony.require ${{ matrix.symfony}}
           composer update --prefer-dist --no-interaction --prefer-stable --prefer-lowest --no-progress
 
       - name: Execute tests

.gitignore

@@ -7,3 +7,5 @@
 /phpunit.xml
 /phpstan.neon
 /vendor/
+
+.phpunit.result.cache

composer.json

@@ -18,7 +18,7 @@
         "psr/http-client": "^1.0",
         "psr/http-factory": "^1.0",
         "psr/http-message": "^1.0",
-        "symfony/options-resolver": "^2.6 || ^3.4.20 || ~4.0.15 || ~4.1.9 || ^4.2.1 || ^5.0",
+        "symfony/options-resolver": "~4.0.15 || ~4.1.9 || ^4.2.1 || ^5.0 || ^6.0",
         "symfony/polyfill-php80": "^1.17"
     },
     "require-dev": {