Update dependency foundation-sites to v6.6.1 (#537)

package.json

@@ -9,7 +9,7 @@
   "private": true,
   "dependencies": {
     "dompurify": "2.0.7",
-    "foundation-sites": "6.5.3",
+    "foundation-sites": "6.6.1",
     "hamburgers": "1.1.3",
     "jquery": "3.4.1",
     "lunr": "2.3.8",

yarn.lock

@@ -1155,10 +1155,10 @@ for-in@^1.0.2:
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
   integrity sha1-gQaNKVqBQuwKxybG4iAMMPttXoA=
 
-foundation-sites@6.5.3:
-  version "6.5.3"
-  resolved "https://registry.yarnpkg.com/foundation-sites/-/foundation-sites-6.5.3.tgz#85373aaed72233ca0d16fdfcb034e976cc6943c9"
-  integrity sha512-ZwI0idjHHjezh6jRjpPxkczvmtUuJ1uGatZHpyloX0MvsFHfM0BFoxrqdXryXugGPdmb+yJi3JYMnz6+5t3K1A==
+foundation-sites@6.6.1:
+  version "6.6.1"
+  resolved "https://registry.yarnpkg.com/foundation-sites/-/foundation-sites-6.6.1.tgz#79dce2f897cc08fafa7e8d56f5b0e88b51c45d38"
+  integrity sha512-4GrCL8L3osFJM6WCNRIQs5kGX5BCKNuO2zzQN68lUTblgpH7FUE28ctkbNFqoTnkUmWARj5VtiS3oQob3H0eZA==
 
 fragment-cache@^0.2.1:
   version "0.2.1"