Update dependency netlify-identity-widget to v1.5.6

Author: renovate-bot

package.json

@@ -50,7 +50,7 @@
     "gatsby-transformer-remark": "2.2.2",
     "metal-clipboard": "2.0.1",
     "metal-tabs": "2.3.1",
-    "netlify-identity-widget": "1.5.4",
+    "netlify-identity-widget": "1.5.6",
     "node-sass": "4.13.0",
     "nothing": "0.1.0",
     "prismjs": "1.17.1",

yarn.lock

@@ -7891,10 +7891,10 @@ neo-async@^2.5.0:
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.0.tgz#b9d15e4d71c6762908654b5183ed38b753340835"
   integrity sha512-MFh0d/Wa7vkKO3Y3LlacqAEeHK0mckVqzDieUKTT+KGxi+zIpeVsFxymkIiRpbpDziHc290Xr9A1O4Om7otoRA==
 
-[email protected].4:
-  version "1.5.4"
-  resolved "https://registry.yarnpkg.com/netlify-identity-widget/-/netlify-identity-widget-1.5.4.tgz#4e8f61ed6713031116ec3a723534cfc06ee3395b"
-  integrity sha512-fBv80CQMkbutLGmNMIGwaoIoYKTa5yBZWrvkPZvzvbzTdyFrUK9Q2D0SfWgbJrEbUROlMRMnpv5wNr/Jo3TzkQ==
+[email protected].6:
+  version "1.5.6"
+  resolved "https://registry.yarnpkg.com/netlify-identity-widget/-/netlify-identity-widget-1.5.6.tgz#b841d4d469ad37bdc47e876d87cc2926aba2c302"
+  integrity sha512-DvWVUGuswOd+IwexKjzIpYcqYMrghmnkmflNqCQc4lG4KX55zE3fFjfXziCTr6LibP7hvZp37s067j5N3kRuyw==
 
 next-tick@^1.0.0:
   version "1.0.0"