fix: clear model object cache after package install

Author: jaredhendrickson13

pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Models/Package.inc

@@ -85,10 +85,13 @@ class Package extends Model {
     /**
      * Installs the package assigned to the `name` field.
      */
-    public function _create() {
+    public function _create(): void {
         # Install the package
         pkg_install($this->name->value);
 
+        # Clear the object cache to ensure we get fresh data
+        $this->clear_object_cache();
+
         # Locate this package's current ID and load info about the package installed
         $this->id = $this->query(name: $this->name->value)->first()->id;
         $this->from_internal();
@@ -97,7 +100,7 @@ class Package extends Model {
     /**
      * Deletes the package assigned to the `name` field.
      */
-    public function _delete() {
+    public function _delete(): void {
         pkg_delete($this->name->value);
     }
 }