Removing one deprecation

Author: weaverryan

composer.json

@@ -18,7 +18,8 @@
         "symfony/finder": "^4.1",
         "symfony/dom-crawler": "^4.1",
         "symfony/css-selector": "^4.1",
-        "symfony/console": "^4.1"
+        "symfony/console": "^4.1",
+        "twig/twig": "^2.7.3"
     },
     "require-dev": {
         "gajus/dindent": "^2.0",

composer.lock

@@ -1,5 +1,5 @@
 {% apply spaceless %}
 {% set domElement = attributes.domElement|default %}
 {% set class = (attributes.class|default ? attributes.class ~ ' ' : '') ~ 'reference ' ~ (('://' in url) ? 'external' : 'internal') %}
-<a href="{{ url|raw }}" class="{{ class }}"{% for key, value in attributes if key != 'domElement' and key != 'class' %} {{ key }}="{{ value }}"{% endfor %}>{% if domElement %}<{{ domElement }}>{% endif %}{{ title|raw }}{% if domElement %}</{{ domElement }}>{% endif %}</a>
+<a href="{{ url|raw }}" class="{{ class }}"{% for key, value in attributes|filter((v, key) => key != 'domElement' and key != 'class') %} {{ key }}="{{ value }}"{% endfor %}>{% if domElement %}<{{ domElement }}>{% endif %}{{ title|raw }}{% if domElement %}</{{ domElement }}>{% endif %}</a>
 {% endapply %}