feature #112 drop support for unmaintained Symfony versions (xabbuh)

This PR was merged into the 0.2-dev branch.

Discussion
----------

drop support for unmaintained Symfony versions

Commits
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9258f31 drop support for unmaintained Symfony versions

Author: xabbuh

.github/workflows/ci.yaml

@@ -97,12 +97,6 @@ jobs:
           - php-version: '7.2'
           - php-version: '7.3'
             composer-options: '--prefer-stable'
-          - php-version: '7.4'
-            composer-options: '--prefer-stable'
-            symfony-version: '5.1.*'
-          - php-version: '7.4'
-            composer-options: '--prefer-stable'
-            symfony-version: '5.2.*'
           - php-version: '7.4'
             composer-options: '--prefer-stable'
             symfony-version: '5.3.*'

CHANGELOG.md

@@ -5,6 +5,7 @@ CHANGELOG
 -----
 
 * add Symfony 6 support
+* drop support for Symfony 5.0, 5.1, and 5.2
 * drop support for PHP 7.1
 
 0.1.0

composer.json

@@ -17,20 +17,20 @@
     "require": {
         "php": "^7.2||^8.0",
         "psr/container": "^1.0",
-        "symfony/config": "^4.4||^5.0||^6.0",
-        "symfony/dependency-injection": "^4.4||^5.0||^6.0",
-        "symfony/form": "^4.4||^5.0||^6.0",
-        "symfony/framework-bundle": "^4.4||^5.0||^6.0",
-        "symfony/http-kernel": "^4.4||^5.0||^6.0",
+        "symfony/config": "^4.4||^5.3||^6.0",
+        "symfony/dependency-injection": "^4.4||^5.3||^6.0",
+        "symfony/form": "^4.4||^5.3||^6.0",
+        "symfony/framework-bundle": "^4.4||^5.3||^6.0",
+        "symfony/http-kernel": "^4.4||^5.3||^6.0",
         "symfony/deprecation-contracts": "^2.1",
-        "symfony/options-resolver": "^4.4||^5.0||^6.0",
-        "symfony/property-access": "^4.4||^5.0||^6.0"
+        "symfony/options-resolver": "^4.4||^5.3||^6.0",
+        "symfony/property-access": "^4.4||^5.3||^6.0"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.4",
         "phpstan/phpstan": "^0.12.4",
-        "symfony/phpunit-bridge": "^4.4.12||^5.2",
-        "symfony/translation": "^4.4||^5.0||^6.0"
+        "symfony/phpunit-bridge": "^4.4.12||^5.3",
+        "symfony/translation": "^4.4||^5.3||^6.0"
     },
     "conflict": {
         "sensiolabs-de/rich-model-forms-bundle": "0.8.*"