chore: update PHPStan baseline for hide_existing_credentials

Add baseline entries for the new hide_existing_credentials configuration
option in WebauthnFactory, consistent with existing baseline entries for
other configuration access patterns.

Author: Spomky

.ci-tools/phpstan-baseline.neon

@@ -543,6 +543,12 @@ parameters:
 			count: 2
 			path: ../src/symfony/src/DependencyInjection/Factory/Security/WebauthnFactory.php
 
+		-
+			rawMessage: Cannot access offset 'hide_existing_credentials' on mixed.
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../src/symfony/src/DependencyInjection/Factory/Security/WebauthnFactory.php
+
 		-
 			rawMessage: Cannot access offset 'host' on mixed.
 			identifier: offsetAccess.nonOffsetAccessible
@@ -711,6 +717,12 @@ parameters:
 			count: 1
 			path: ../src/symfony/src/DependencyInjection/Factory/Security/WebauthnFactory.php
 
+		-
+			rawMessage: 'Parameter #10 $hideExistingCredentials of method Webauthn\Bundle\DependencyInjection\Factory\Security\WebauthnFactory::createAttestationRequestControllerAndRoute() expects bool, mixed given.'
+			identifier: argument.type
+			count: 1
+			path: ../src/symfony/src/DependencyInjection/Factory/Security/WebauthnFactory.php
+
 		-
 			rawMessage: 'Parameter #3 $config of method Webauthn\Bundle\DependencyInjection\Factory\Security\WebauthnFactory::getAssertionOptionsBuilderId() expects array<mixed>, mixed given.'
 			identifier: argument.type