Bump doc deps

docs/Gemfile.lock

@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (6.0.5)
+    activesupport (6.0.5.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -32,7 +32,7 @@ GEM
     ffi (1.15.5)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
-    github-pages (226)
+    github-pages (227)
       github-pages-health-check (= 1.17.9)
       jekyll (= 3.9.2)
       jekyll-avatar (= 0.7.0)
@@ -74,7 +74,7 @@ GEM
       liquid (= 4.0.3)
       mercenary (~> 0.3)
       minima (= 2.5.1)
-      nokogiri (>= 1.13.4, < 2.0)
+      nokogiri (>= 1.13.6, < 2.0)
       rouge (= 3.26.0)
       terminal-table (~> 1.4)
     github-pages-health-check (1.17.9)
@@ -211,7 +211,9 @@ GEM
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     minitest (5.16.2)
-    nokogiri (1.13.6-arm64-darwin)
+    nokogiri (1.13.7-arm64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.13.7-x86_64-linux)
       racc (~> 1.4)
     octokit (4.25.1)
       faraday (>= 1, < 3)
@@ -243,7 +245,7 @@ GEM
     thread_safe (0.3.6)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
-    tzinfo (1.2.9)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext
@@ -254,10 +256,11 @@ GEM
 
 PLATFORMS
   arm64-darwin-21
+  x86_64-linux
 
 DEPENDENCIES
   github-pages
   webrick
 
 BUNDLED WITH
-   2.3.4
+   2.3.14