fix incorrect value of autocomplete attribute (off instead of false) to properly…

fix incorrect value of autocomplete attribute (off instead of false) to properly disable form autocompletion

src/Admin/AdherentAdmin.php

@@ -249,7 +249,7 @@ class AdherentAdmin extends AbstractAdmin
                                     ],
                                     'required' => true,
                                     'attr' => [
-                                        'autocomplete' => false
+                                        'autocomplete' => 'off'
                                     ]
                                 ])
                             ->end()
@@ -277,7 +277,7 @@ class AdherentAdmin extends AbstractAdmin
                                     ],
                                     'required' => true,
                                     'attr' => [
-                                        'autocomplete' => false
+                                        'autocomplete' => 'off'
                                     ]
                                 ])
                                 ->add('dependentChildren', CollectionType::class, [