feat: add Psalm static analysis

Author: COil

.github/workflows/symfony.yml

@@ -122,5 +122,7 @@ jobs:
       run: castor lint:php
     - name: PHPStan static analysis
       run: castor stan
+    - name: Psalm static analysis
+      run: make psalm
 
 # The end. 🙃

Makefile

@@ -81,6 +81,9 @@ cov-report: var/coverage/index.html ## Open the PHPUnit code coverage report (va
 stan: var/cache/dev/App_KernelDevDebugContainer.xml ## Run the PHPStan static analysis
 	@vendor/bin/phpstan analyse -c phpstan.neon --memory-limit 1G -vv
 
+psalm: var/cache/dev/App_KernelDevDebugContainer.xml ## Run the Psalm analysis
+	@vendor/bin/psalm
+
 # PHPStan needs the dev/debug cache
 var/cache/dev/App_KernelDevDebugContainer.xml:
 	APP_DEBUG=1 APP_ENV=dev bin/console cache:warmup

composer.json

@@ -54,6 +54,7 @@
         "phpstan/extension-installer": "^1.3",
         "phpstan/phpstan-symfony": "^2.0",
         "phpunit/phpunit": "^11.0",
+        "psalm/plugin-symfony": "^5.2",
         "roave/security-advisories": "dev-latest",
         "symfony/browser-kit": "~7.2.0",
         "symfony/css-selector": "~7.2.0",