Update dependency font-awesome to v7

Author: renovate[bot]

portal/templates/portal/base.html

@@ -11,7 +11,7 @@
     <meta name="description" content="The Rensselaer Center for Open Source website.">
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/css/bulma.min.css">
-    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.0/css/all.min.css" integrity="sha512-9xKTRVabjVeZmc+GUW8GgSmcREDunMM+Dt/GrzchfN8tkwHizc5RP4Ok/MXFFy5rIjJjzhndFScTceq5e6GvVQ==" crossorigin="anonymous" referrerpolicy="no-referrer" />
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/7.0.1/css/all.min.css" integrity="sha512-2SwdPD6INVrV/lHTZbO2nodKhrnDdJK9/kg2XD1r9uGqPo1cUbujc+IYdlYdEErWNu69gVcYgdxlmVmzTWnetw==" crossorigin="anonymous" referrerpolicy="no-referrer" />
 
     <style>
         body {