Update libreofficedev depends_on (#4991)

* Update libreofficedev.rb

* Update libreofficedev.rb

Casks/libreofficedev.rb

@@ -5,12 +5,12 @@ cask 'libreofficedev' do
   # documentfoundation.org/libreoffice was verified as official when first introduced to the cask
   url "https://download.documentfoundation.org/libreoffice/testing/#{version.major_minor_patch}/mac/x86_64/LibreOfficeDev_#{version}_MacOS_x86-64.dmg"
   appcast 'https://download.documentfoundation.org/libreoffice/testing/',
-          checkpoint: 'a6a504cfe07f057cf8cd6c5361c26f445cd9585aed488e287bdf1d9baf9dac4e'
+          checkpoint: 'd6ccf50b68348f3513ad8ed13226ecfce17bfccf694267c5ef3409f0fc6bff20'
   name 'LibreOffice Development Version'
   homepage 'https://www.libreoffice.org/download/pre-releases/'
   gpg "#{url}.asc", key_id: 'c2839ecad9408fbe9531c3e9f434a1efafeeaea3'
 
-  depends_on macos: '>= :mountain_lion'
+  depends_on macos: '>= :mavericks'
 
   app 'LibreOfficeDev.app'
   binary "#{appdir}/LibreOfficeDev.app/Contents/MacOS/gengal", target: 'gengal-dev'