Merge branch 'dependabot/bundler/activesupport-6.0.6.1' of 'https://github.com/chaoss/grimoirelab-tutorial'

Merges #220
Closes #220

Author: sduenas

Gemfile.lock

@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (6.0.4)
+    activesupport (6.0.6.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -16,7 +16,7 @@ GEM
     colorator (1.1.0)
     commonmarker (0.17.13)
       ruby-enum (~> 0.5)
-    concurrent-ruby (1.1.9)
+    concurrent-ruby (1.2.2)
     dnsruby (1.61.7)
       simpleidn (~> 0.1)
     em-websocket (0.5.2)
@@ -225,7 +225,7 @@ GEM
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
-    minitest (5.14.4)
+    minitest (5.20.0)
     multipart-post (2.1.1)
     nokogiri (1.15.4-x86_64-linux)
       racc (~> 1.4)
@@ -262,14 +262,14 @@ GEM
     thread_safe (0.3.6)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
-    tzinfo (1.2.10)
+    tzinfo (1.2.11)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.7)
     unicode-display_width (1.7.0)
     webrick (1.8.1)
-    zeitwerk (2.4.2)
+    zeitwerk (2.6.12)
 
 PLATFORMS
   x86_64-linux