minor #13969 Update service_container.rst (abdounikarim)

This PR was submitted for the 5.1 branch but it was merged into the 5.0 branch instead.

Discussion
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Update service_container.rst

Hello,

I removed the `Migrations` folder from exclude.
Since 5.1, this directory has been moved outside of `src`.

Commits
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fe2ad65 Update service_container.rst

Author: javiereguiluz

service_container.rst

@@ -159,7 +159,7 @@ each time you ask for it.
                 # this creates a service per class whose id is the fully-qualified class name
                 App\:
                     resource: '../src/*'
-                    exclude: '../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}'
+                    exclude: '../src/{DependencyInjection,Entity,Tests,Kernel.php}'
 
                 # ...
 
@@ -178,7 +178,7 @@ each time you ask for it.
 
                     <!-- makes classes in src/ available to be used as services -->
                     <!-- this creates a service per class whose id is the fully-qualified class name -->
-                    <prototype namespace="App\" resource="../src/*" exclude="../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}"/>
+                    <prototype namespace="App\" resource="../src/*" exclude="../src/{DependencyInjection,Entity,Tests,Kernel.php}"/>
 
                     <!-- ... -->
 
@@ -201,7 +201,7 @@ each time you ask for it.
                 // makes classes in src/ available to be used as services
                 // this creates a service per class whose id is the fully-qualified class name
                 $services->load('App\\', '../src/*')
-                    ->exclude('../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}');
+                    ->exclude('../src/{DependencyInjection,Entity,Tests,Kernel.php}');
             };
 
     .. tip::
@@ -408,7 +408,7 @@ pass here. No problem! In your configuration, you can explicitly set this argume
             # same as before
             App\:
                 resource: '../src/*'
-                exclude: '../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}'
+                exclude: '../src/{DependencyInjection,Entity,Tests,Kernel.php}'
 
             # explicitly configure the service
             App\Updates\SiteUpdateManager:
@@ -431,7 +431,7 @@ pass here. No problem! In your configuration, you can explicitly set this argume
 
                 <prototype namespace="App\"
                     resource="../src/*"
-                    exclude="../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}"
+                    exclude="../src/{DependencyInjection,Entity,Tests,Kernel.php}"
                 />
 
                 <!-- Explicitly configure the service -->
@@ -453,7 +453,7 @@ pass here. No problem! In your configuration, you can explicitly set this argume
 
             // same as before
             $services->load('App\\', '../src/*')
-                ->exclude('../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}');
+                ->exclude('../src/{DependencyInjection,Entity,Tests,Kernel.php}');
 
             $services->set(SiteUpdateManager::class)
                 ->arg('$adminEmail', 'manager@example.com')
@@ -929,7 +929,7 @@ key. For example, the default Symfony configuration contains this:
             # this creates a service per class whose id is the fully-qualified class name
             App\:
                 resource: '../src/*'
-                exclude: '../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}'
+                exclude: '../src/{DependencyInjection,Entity,Tests,Kernel.php}'
 
     .. code-block:: xml
 
@@ -943,7 +943,7 @@ key. For example, the default Symfony configuration contains this:
             <services>
                 <!-- ... same as before -->
 
-                <prototype namespace="App\" resource="../src/*" exclude="../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}"/>
+                <prototype namespace="App\" resource="../src/*" exclude="../src/{DependencyInjection,Entity,Tests,Kernel.php}"/>
             </services>
         </container>
 
@@ -958,7 +958,7 @@ key. For example, the default Symfony configuration contains this:
             // makes classes in src/ available to be used as services
             // this creates a service per class whose id is the fully-qualified class name
             $services->load('App\\', '../src/*')
-                ->exclude('../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}');
+                ->exclude('../src/{DependencyInjection,Entity,Tests,Kernel.php}');
         };
 
 .. tip::