[API] Set URL generation strategy for Taxon resource after the API Platform changes with usage of genId (#18196)

| Q               | A
|-----------------|-----
| Branch?         | 2.1
| Bug fix?        | yes
| New feature?    | no
| BC breaks?      | no
| Deprecations?   | no
| Related tickets | 
| License         | MIT

This PR fixes issue with APIP 4.1.17:
https://github.com/Sylius/Sylius/actions/runs/15963124014/job/45018806151#step:11:16,
after api-platform/core#7219.

Reference: api-platform/core#7261
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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **New Features**
* Updated the Taxon API resource configuration to explicitly set the URL
generation strategy, which affects how URLs are generated for
Taxon-related API operations.

* **Style**
* Minor formatting adjustment in the XML property tag for channel price
history configuration (no impact on functionality).

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: NoResponseMate

src/Sylius/Bundle/ApiBundle/Resources/config/api_platform/properties/Channel.xml

@@ -80,5 +80,5 @@
     <property resource="%sylius.model.channel.class%" name="shippingAddressInCheckoutRequired" writable="true" readable="true" />
     <property resource="%sylius.model.channel.class%" name="shopBillingData" writable="true" genId="false"/>
     <property resource="%sylius.model.channel.class%" name="menuTaxon" writable="true" readable="true" />
-    <property resource="%sylius.model.channel.class%" name="channelPriceHistoryConfig" writable="true" genId="false"/>
+    <property resource="%sylius.model.channel.class%" name="channelPriceHistoryConfig" writable="true" genId="false" />
 </properties>

src/Sylius/Bundle/ApiBundle/Resources/config/api_platform/resources/admin/Taxon.xml

@@ -16,7 +16,7 @@
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="https://api-platform.com/schema/metadata/resources-3.0 https://api-platform.com/schema/metadata/resources-3.0.xsd"
 >
-    <resource class="%sylius.model.taxon.class%">
+    <resource class="%sylius.model.taxon.class%" urlGenerationStrategy="1">
         <operations>
             <operation name="sylius_api_admin_taxon_get_collection" class="ApiPlatform\Metadata\GetCollection" uriTemplate="/admin/taxons">
                 <normalizationContext>