Bump jekyll-feed from 0.12.1 to 0.13.0 (#28)

Bumps [jekyll-feed](https://github.com/jekyll/jekyll-feed) from 0.12.1 to 0.13.0.
- [Release notes](https://github.com/jekyll/jekyll-feed/releases)
- [Changelog](https://github.com/jekyll/jekyll-feed/blob/master/History.markdown)
- [Commits](jekyll/jekyll-feed@v0.12.1...v0.13.0)

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

Author: dependabot-preview[bot]

Gemfile

@@ -20,7 +20,7 @@ gem 'jekyll-seo-tag', "~> 2.6.1"
 
 # If you have any plugins, put them here!
 group :jekyll_plugins do
-  gem "jekyll-feed", "~> 0.12.1"
+  gem "jekyll-feed", "~> 0.13.0"
   gem "jekyll-paginate"
   gem 'jemoji'
 end

Gemfile.lock

@@ -4,8 +4,8 @@ GEM
     activesupport (3.2.22.5)
       i18n (~> 0.6, >= 0.6.4)
       multi_json (~> 1.0)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
     concurrent-ruby (1.1.5)
     em-websocket (0.5.1)
@@ -14,9 +14,9 @@ GEM
     eventmachine (1.2.7)
     eventmachine (1.2.7-x64-mingw32)
     eventmachine (1.2.7-x86-mingw32)
-    ffi (1.11.1)
-    ffi (1.11.1-x64-mingw32)
-    ffi (1.11.1-x86-mingw32)
+    ffi (1.11.2)
+    ffi (1.11.2-x64-mingw32)
+    ffi (1.11.2-x86-mingw32)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
     html-pipeline (2.11.1)
@@ -38,7 +38,7 @@ GEM
       pathutil (~> 0.9)
       rouge (>= 1.7, < 4)
       safe_yaml (~> 1.0)
-    jekyll-feed (0.12.1)
+    jekyll-feed (0.13.0)
       jekyll (>= 3.7, < 5.0)
     jekyll-paginate (1.1.0)
     jekyll-sass-converter (1.5.2)
@@ -53,10 +53,9 @@ GEM
       jekyll (>= 3.0, < 5.0)
     kramdown (1.17.0)
     liquid (4.0.3)
-    listen (3.1.5)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-      ruby_dep (~> 1.2)
+    listen (3.2.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
     mini_portile2 (2.4.0)
     minima (2.5.0)
@@ -72,12 +71,11 @@ GEM
       mini_portile2 (~> 2.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.1.1)
+    public_suffix (4.0.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    rouge (3.8.0)
-    ruby_dep (1.5.0)
+    rouge (3.13.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
@@ -96,7 +94,7 @@ PLATFORMS
 
 DEPENDENCIES
   jekyll (= 3.8.5)
-  jekyll-feed (~> 0.12.1)
+  jekyll-feed (~> 0.13.0)
   jekyll-paginate
   jekyll-seo-tag (~> 2.6.1)
   jemoji