bug symfony#44460 [SecurityBundle] Fix ambiguous deprecation message on missing provider (chalasr)

This PR was merged into the 5.4 branch.

Discussion
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[SecurityBundle] Fix ambiguous deprecation message on missing provider

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Fixes symfony#44362
| License       | MIT
| Doc PR        | -

The current message is quite misleading as you cannot set the `provider` key under `custom_authenticators`, it needs to be set on the firewall. This PR fixes it.

Commits
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05e78b3 [SecurityBundle] Fix ambiguous deprecation message on missing provider

Author: fabpot

src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php

@@ -704,7 +704,7 @@ private function getUserProvider(ContainerBuilder $container, string $id, array
 
         if ('remember_me' === $factoryKey || 'anonymous' === $factoryKey || 'custom_authenticators' === $factoryKey) {
             if ('custom_authenticators' === $factoryKey) {
-                trigger_deprecation('symfony/security-bundle', '5.4', 'Not configuring explicitly the provider for the "%s" listener on "%s" firewall is deprecated because it\'s ambiguous as there is more than one registered provider.', $factoryKey, $id);
+                trigger_deprecation('symfony/security-bundle', '5.4', 'Not configuring explicitly the provider for the "%s" firewall is deprecated because it\'s ambiguous as there is more than one registered provider. Set the "provider" key to one of the configured providers, even if your custom authenticators don\'t use it.', $id);
             }
 
             return 'security.user_providers';

src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/SecurityExtensionTest.php

@@ -397,7 +397,7 @@ public function testFirewallWithNoUserProviderTriggerDeprecation()
             ],
         ]);
 
-        $this->expectDeprecation('Since symfony/security-bundle 5.4: Not configuring explicitly the provider for the "custom_authenticators" listener on "some_firewall" firewall is deprecated because it\'s ambiguous as there is more than one registered provider.');
+        $this->expectDeprecation('Since symfony/security-bundle 5.4: Not configuring explicitly the provider for the "some_firewall" firewall is deprecated because it\'s ambiguous as there is more than one registered provider. Set the "provider" key to one of the configured providers, even if your custom authenticators don\'t use it.');
 
         $container->compile();
     }