minor #2410 [Icons] use dedicated cache pool (IndraGunawan)

This PR was squashed before being merged into the 2.x branch.

Discussion
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[Icons] use dedicated cache pool

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Issues        | Fix #... <!-- prefix each issue number with "Fix #", no need to create an issue if none exist, explain below instead -->
| License       | MIT

based on `@stof` comment on EasyAdminBundle repository EasyCorp/EasyAdminBundle#6507 (comment)

> you should probably create a dedicated cache pool inheriting its configuration from cache.system instead of using cache.system directly. this is how core Symfony components work (allowing them to avoid having to care about conflicting keys between the caches of different component, as the key only needs to be unique inside the cache pool)

Commits
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62f7c03 [Icons] use dedicated cache pool

src/Icons/config/iconify.php

@@ -27,7 +27,7 @@
 
         ->set('.ux_icons.iconify', Iconify::class)
             ->args([
-                service('cache.system'),
+                service('.ux_icons.cache'),
                 abstract_arg('endpoint'),
                 service('http_client')->nullOnInvalid(),
             ])

src/Icons/config/services.php

@@ -24,10 +24,15 @@
 
 return static function (ContainerConfigurator $container): void {
     $container->services()
+        ->set('.ux_icons.cache')
+            ->parent('cache.system')
+            ->private()
+            ->tag('cache.pool')
+
         ->set('.ux_icons.cache_icon_registry', CacheIconRegistry::class)
             ->args([
                 service('.ux_icons.chain_registry'),
-                service('cache.system'),
+                service('.ux_icons.cache'),
             ])
 
         ->set('.ux_icons.local_svg_icon_registry', LocalSvgIconRegistry::class)

src/Icons/src/Iconify.php

@@ -196,7 +196,7 @@ public function chunk(string $prefix, array $names): iterable
 
     private function sets(): \ArrayObject
     {
-        return $this->sets ??= $this->cache->get('ux-iconify-sets', function () {
+        return $this->sets ??= $this->cache->get('iconify-sets', function () {
             $response = $this->http->request('GET', '/collections');
 
             return new \ArrayObject($response->toArray());

src/Icons/src/Registry/CacheIconRegistry.php

@@ -34,7 +34,7 @@ public function get(string $name, bool $refresh = false): Icon
         }
 
         return $this->cache->get(
-            \sprintf('ux-icon-%s', Icon::nameToId($name)),
+            Icon::nameToId($name),
             fn () => $this->inner->get($name),
             beta: $refresh ? \INF : null,
         );