chore: Update PHPStan configuration - add deprecations baseline.

grumphp.yml

@@ -1,10 +1,13 @@
 imports:
-  - { resource: tests/app/vendor/drupol/php-conventions/config/php73/grumphp.yml }
+    - {
+          resource: tests/app/vendor/drupol/php-conventions/config/php73/grumphp.yml,
+      }
 
 parameters:
-  tasks.phpcsfixer.config: .php_cs.dist.php
+    tasks.phpcsfixer.config: .php_cs.dist.php
-  tasks.license.name: AGPL-3.0
+    tasks.license.name: AGPL-3.0
-  tasks.license.holder: Champs-Libres
+    tasks.license.holder: Champs-Libres
-  tasks.license.date_from: 2001
+    tasks.license.date_from: 2001
 
-  tasks.phpcsfixer.allow_risky: false
+    tasks.phpcsfixer.allow_risky: false
+    tasks.phpstan.level: 1

phpstan.neon.dist

@@ -3,6 +3,7 @@ parameters:
     paths:
         - src/
     excludePaths:
+        - docs/
         - src/Bundle/*/Tests/*
         - src/Bundle/*/tests/*
         - src/Bundle/*/Test/*
@@ -18,7 +19,8 @@ parameters:
         - src/Bundle/*/src/Resources/*
 
 includes:
-    - phpstan-types.neon
-    - phpstan-critical.neon
     - phpstan-baseline.neon
+    - phpstan-critical.neon
+    - phpstan-deprecations.neon
+    - phpstan-types.neon