gollum: Update the dependencies (security)

This updates Nokogiri to 1.10.5 for CVE-2019-13117, CVE-2019-13118, and
CVE-2019-18197 [0].

[0]: https://github.com/sparklemotion/nokogiri/issues/1943

pkgs/applications/misc/gollum/Gemfile.lock

@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    charlock_holmes (0.7.6)
+    charlock_holmes (0.7.7)
     diff-lcs (1.3)
     gemojione (3.3.0)
       json
@@ -31,12 +31,12 @@ GEM
       twitter-text (= 1.14.7)
     json (2.2.0)
     kramdown (1.9.0)
-    mime-types (3.2.2)
+    mime-types (3.3)
       mime-types-data (~> 3.2015)
-    mime-types-data (3.2019.0331)
+    mime-types-data (3.2019.1009)
     mini_portile2 (2.4.0)
     mustache (0.99.8)
-    nokogiri (1.10.4)
+    nokogiri (1.10.5)
       mini_portile2 (~> 2.4.0)
     posix-spawn (0.3.13)
     rack (1.6.11)
@@ -50,7 +50,7 @@ GEM
       rack-protection (~> 1.4)
       tilt (>= 1.3, < 3)
     stringex (2.8.5)
-    tilt (2.0.9)
+    tilt (2.0.10)
     twitter-text (1.14.7)
       unf (~> 0.1.0)
     unf (0.1.4)
@@ -65,4 +65,4 @@ DEPENDENCIES
   gollum
 
 BUNDLED WITH
-   1.17.2
+   1.17.3