Add AllowDynamicProperties on OCILob and OCICollection

Fix GH-8756 : oci_new_descriptor() triggers dynamic property
deprecation.

This fix should be temporary. At some point we should either define
those properties or just hide them since they should probably not be
used.

Better fix is here : #8758 but
waiting feedback from Oracle team before going ahead.

Author: adoy

ext/oci8/oci8.stub.php

@@ -560,6 +560,7 @@ function oci_register_taf_callback($connection, ?callable $callback): bool {}
 /** @param resource $connection */
 function oci_unregister_taf_callback($connection): bool {}
 
+#[AllowDynamicProperties]
 class OCILob {
     /**
      * @alias oci_lob_save
@@ -688,6 +689,7 @@ public function close(): bool {}
     public function free(): bool {}
 }
 
+#[AllowDynamicProperties]
 class OCICollection {
     /**
      * @alias oci_free_collection