Bump nokogiri from 1.8.4 to 1.10.10

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.8.4 to 1.10.10.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/master/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.8.4...v1.10.10)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Gemfile.lock

@@ -3,7 +3,7 @@ PATH
   specs:
     willow_sword (0.2.0)
       bagit (~> 0.4.1)
-      rails (~> 5.1.6)
+      rails (>= 5.1.6)
       rubyzip (>= 1.0.0)
 
 GEM
@@ -72,11 +72,11 @@ GEM
       mini_mime (>= 0.1.1)
     method_source (0.9.0)
     mini_mime (1.0.2)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     minitest (5.11.3)
     nio4r (2.5.2)
-    nokogiri (1.8.4)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.10)
+      mini_portile2 (~> 2.4.0)
     rack (2.0.5)
     rack-test (1.0.0)
       rack (>= 1.0, < 3)