Bump nokogiri from 1.8.2 to 1.10.9

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.8.2 to 1.10.9.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/master/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.8.2...v1.10.9)

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -64,6 +64,7 @@ GEM
     crass (1.0.3)
     erubi (1.7.0)
     execjs (2.7.0)
+    ffi (1.9.18)
     ffi (1.9.18-x64-mingw32)
     globalid (0.4.1)
       activesupport (>= 4.2.0)
@@ -79,12 +80,14 @@ GEM
       mini_mime (>= 0.1.1)
     method_source (0.9.0)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     nio4r (2.2.0)
-    nokogiri (1.8.2-x64-mingw32)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.9)
+      mini_portile2 (~> 2.4.0)
+    nokogiri (1.10.9-x64-mingw32)
+      mini_portile2 (~> 2.4.0)
     public_suffix (3.0.1)
     puma (3.11.2)
     rack (2.0.3)
@@ -139,6 +142,7 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
+    sqlite3 (1.3.13)
     sqlite3 (1.3.13-x64-mingw32)
     thor (0.20.0)
     thread_safe (0.3.6)
@@ -164,6 +168,7 @@ GEM
       nokogiri (~> 1.8)
 
 PLATFORMS
+  ruby
   x64-mingw32
 
 DEPENDENCIES