Bump nokogiri from 1.10.8 to 1.11.0 in /src-api

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.10.8 to 1.11.0.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.10.8...v1.11.0)

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

src-api/Gemfile

@@ -8,5 +8,5 @@ gem 'middleman-autoprefixer', '~> 2.7.0'
 gem 'middleman-sprockets', '~> 4.1.0'
 gem 'rouge', '~> 2.0.5'
 gem 'redcarpet', '~> 3.4.0'
-gem 'nokogiri', '~> 1.10.8'
+gem 'nokogiri', '~> 1.11.0'
 gem "therubyracer"

src-api/Gemfile.lock

@@ -81,10 +81,11 @@ GEM
     middleman-syntax (3.0.0)
       middleman-core (>= 3.2)
       rouge (~> 2.0)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.0)
     minitest (5.10.1)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.0)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     padrino-helpers (0.13.3.3)
       i18n (~> 0.6, >= 0.6.7)
       padrino-support (= 0.13.3.3)
@@ -93,6 +94,7 @@ GEM
       activesupport (>= 3.1)
     parallel (1.10.0)
     public_suffix (2.0.5)
+    racc (1.5.2)
     rack (2.2.3)
     rb-fsevent (0.9.8)
     rb-inotify (0.9.8)
@@ -125,7 +127,7 @@ DEPENDENCIES
   middleman-autoprefixer (~> 2.7.0)
   middleman-sprockets (~> 4.1.0)
   middleman-syntax (~> 3.0.0)
-  nokogiri (~> 1.10.8)
+  nokogiri (~> 1.11.0)
   redcarpet (~> 3.4.0)
   rouge (~> 2.0.5)
   therubyracer