Bump nokogiri from 1.10.10 to 1.11.0

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.10.10 to 1.11.0.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/master/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.10.10...v1.11.0)

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

Author: dependabot[bot]

Gemfile.lock

@@ -74,15 +74,17 @@ GEM
       shex (~> 0.6)
       sparql (~> 3.1, >= 3.1.1)
       sparql-client (~> 3.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.0)
     multi_json (1.15.0)
     net-http-persistent (3.1.0)
       connection_pool (~> 2.2)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.0)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     nokogumbo (2.0.2)
       nokogiri (~> 1.8, >= 1.8.4)
     public_suffix (4.0.6)
+    racc (1.5.2)
     rack (2.2.3)
     rake (13.0.1)
     rdf (3.1.6)