Update 3 dependencies from git

config/software/chef-gem.rb

@@ -17,7 +17,7 @@
 name 'chef-gem'
 # The version here should be in agreement with /Gemfile.lock so that our rspec
 # testing stays consistent with the package contents.
-default_version '15.12.22'
+default_version '15.13.19'
 license 'Apache-2.0'
 license_file 'LICENSE'

config/software/chef-zero.rb

@@ -17,7 +17,7 @@
 name 'chef-zero'
 # The version here should be in agreement with /Gemfile.lock so that our rspec
 # testing stays consistent with the package contents.
-default_version '15.0.0'
+default_version '15.0.2'
 license 'Apache-2.0'
 license_file 'LICENSE'

config/software/mixlib-log.rb

@@ -17,7 +17,7 @@
 name 'mixlib-log'
 # The version here should be in agreement with /Gemfile.lock so that our rspec
 # testing stays consistent with the package contents.
-default_version '3.0.8'
+default_version '3.0.9'
 license 'Apache-2.0'
 license_file 'LICENSE'