Update Nokogiri to v1.11.0 to fix CVE-2020-26247 (#1487)

Co-authored-by: Manjunath <manjunath@clearstack.io>

Gemfile.lock

@@ -190,7 +190,7 @@ GEM
     mime-types-data (3.2016.0521)
     mimemagic (0.3.2)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.0)
     minitest (5.14.0)
     mongo (2.11.3)
       bson (>= 4.4.2, < 5.0.0)
@@ -209,9 +209,11 @@ GEM
     netrc (0.11.0)
     nio4r (2.5.2)
     nio4r (2.5.2-java)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.9-java)
+    nokogiri (1.11.1)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
+    nokogiri (1.11.1-java)
+      racc (~> 1.4)
     oauth2 (1.4.1)
       faraday (>= 0.8, < 0.16.0)
       jwt (>= 1.0, < 3.0)
@@ -270,6 +272,8 @@ GEM
       nio4r (~> 2.0)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
+    racc (1.5.2)
+    racc (1.5.2-java)
     rack (1.6.13)
     rack-contrib (1.8.0)
       rack (~> 1.4)
@@ -486,4 +490,4 @@ DEPENDENCIES
   yajl-ruby
 
 BUNDLED WITH
-   2.1.2
+   2.1.4