Add index on publicKeyCredentialId in Doctrine mapping (#670)

* Set publicKeyCredentialId as unique in ORM mapping

Marked the publicKeyCredentialId field as unique in the PublicKeyCredentialSource mapping configuration. This ensures database-level enforcement of uniqueness for this field, preventing duplicate entries.

* Set publicKeyCredentialId as unique in ORM mapping

Marked the publicKeyCredentialId field as unique in the PublicKeyCredentialSource mapping configuration. This ensures database-level enforcement of uniqueness for this field, preventing duplicate entries.

phpstan-baseline.neon

@@ -2100,12 +2100,6 @@ parameters:
 			count: 1
 			path: src/webauthn/src/MetadataService/Statement/MetadataStatement.php
 
-		-
-			message: '#^Since web\-auth/webauthn\-lib 5\.1\.0\: The parameter "\$icon" is deprecated since 5\.1\.0 and will be removed in 6\.0\.0\. This value has no effect\. Please set "null" instead\.\.$#'
-			identifier: todoBy.sfDeprecation
-			count: 1
-			path: src/webauthn/src/PublicKeyCredentialEntity.php
-
 		-
 			message: '#^Parameter \#1 \$extensions of static method Webauthn\\AuthenticationExtensions\\AuthenticationExtensions\:\:create\(\) expects array\<Webauthn\\AuthenticationExtensions\\AuthenticationExtension\>, array\<Webauthn\\AuthenticationExtensions\\AuthenticationExtensions\> given\.$#'
 			identifier: argument.type

src/symfony/src/Resources/config/doctrine-mapping/PublicKeyCredentialSource.orm.xml

@@ -5,7 +5,7 @@
     xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping https://raw.github.com/doctrine/doctrine2/master/doctrine-mapping.xsd"
 >
     <mapped-superclass name="Webauthn\PublicKeyCredentialSource">
-        <field name="publicKeyCredentialId" type="base64"/>
+        <field name="publicKeyCredentialId" type="base64" unique="true"/>
         <field name="type"/>
         <field name="transports" type="json"/>
         <field name="attestationType"/>