Force installing the same version for all Symfony components during the CI

Author: ste93cry

.github/workflows/tests.yaml

@@ -31,10 +31,13 @@ jobs:
           - description: 'Symfony 4.4'
             php: '7.3'
             symfony_constraint: 4.4.*
+            env:
+              SYMFONY_REQUIRE: ${{matrix.symfony_constraint}}
           - description: 'Symfony 3.4'
             php: '7.2'
             symfony_constraint: 3.4.*
             env:
+              SYMFONY_REQUIRE: ${{matrix.symfony_constraint}}
               SYMFONY_DEPRECATIONS_HELPER: disabled
           - description: 'prefer lowest'
             php: '7.2'
@@ -58,6 +61,8 @@ jobs:
       - run: |
           sed -ri '/symfony\/(monolog-bundle|phpunit-bridge|messenger|psr-http-message-bridge|polyfill-php80)/! s/"symfony\/(.+)": "(.+)"/"symfony\/\1": "'${{ matrix.symfony_constraint }}'"/' composer.json;
         if: matrix.symfony_constraint
+      - name: Install Symfony Flex
+        run: composer global require --no-progress --no-scripts --no-plugins symfony/flex
       - run: composer remove --dev symfony/messenger --no-update
         if: matrix.symfony_constraint == '3.4.*' || matrix.composer_option == '--prefer-lowest'
       - run: composer update --no-progress --ansi ${{ matrix.composer_option }}

composer.json

@@ -29,7 +29,7 @@
         "symfony/event-dispatcher": "^3.4.44||^4.4.20||^5.0.11",
         "symfony/http-kernel": "^3.4.44||^4.4.20||^5.0.11",
         "symfony/polyfill-php80": "^1.22",
-        "symfony/psr-http-message-bridge": "^2.0",
+        "symfony/psr-http-message-bridge": "^1.2||^2.0",
         "symfony/security-core": "^3.4.44||^4.4.20||^5.0.11"
     },
     "require-dev": {