Run all tests on PHP 8

.github/workflows/continuous-integration.yml

@@ -90,19 +90,10 @@ jobs:
       - name: "Globally install symfony/flex"
         run: "composer global require --no-progress --no-scripts --no-plugins symfony/flex"
 
-      # to be removed when our dependencies support PHP 8
-      - name: "Pretend this is PHP 7.4"
-        run: "composer config platform.php 7.4.99"
-        if: "${{ matrix.php-version == '8.0' }}"
-
       - name: "Require symfony/messenger"
         run: "composer require --dev symfony/messenger --no-update"
         if: "${{ startsWith(matrix.symfony-require, '4.') }}"
 
-      - name: "Remove doctrine/orm"
-        run: "composer remove --dev doctrine/orm --no-update"
-        if: "${{ matrix.php-version == '8.0' }}"
-
       - name: "Install stable dependencies with composer"
         run: "composer update --no-interaction --prefer-dist --prefer-stable"
         if: "${{ matrix.deps == 'normal' }}"

composer.json

@@ -40,7 +40,7 @@
     "require-dev": {
         "doctrine/coding-standard": "^8.0",
         "doctrine/orm": "^2.6",
-        "ocramius/proxy-manager": "^2.1",
+        "friendsofphp/proxy-manager-lts": "^1.0",
         "phpunit/phpunit": "^7.5 || ^8.0 || ^9.3",
         "symfony/phpunit-bridge": "^4.2",
         "symfony/property-info": "^4.3.3|^5.0",