Convert around plugins to after plugins

We don't need to increase the callstack here with an around plugin, as the
parameters we need to be able to access are provided to after plugins.

Author: navarr

lib/internal/Magento/Framework/App/Cache/FlushCacheByTags.php

@@ -54,9 +54,11 @@ public function __construct(
      *
      * @SuppressWarnings(PHPMD.UnusedFormalParameter)
      */
-    public function aroundSave(AbstractResource $subject, \Closure $proceed, AbstractModel $object): AbstractResource
-    {
-        $result = $proceed($object);
+    public function afterSave(
+        AbstractResource $subject,
+        AbstractResource $result,
+        AbstractModel $object
+    ): AbstractResource {
         $tags = $this->tagResolver->getTags($object);
         $this->cleanCacheByTags($tags);
 
@@ -68,10 +70,12 @@ public function aroundSave(AbstractResource $subject, \Closure $proceed, Abstrac
      *
      * @SuppressWarnings(PHPMD.UnusedFormalParameter)
      */
-    public function aroundDelete(AbstractResource $subject, \Closure $proceed, AbstractModel $object): AbstractResource
-    {
+    public function afterDelete(
+        AbstractResource $subject,
+        AbstractResource $result,
+        AbstractModel $object
+    ): AbstractResource {
         $tags = $this->tagResolver->getTags($object);
-        $result = $proceed($object);
         $this->cleanCacheByTags($tags);
 
         return $result;