Version bump to v2.8.0.beta7 (#14667)

Version bump to v2.8.0.beta7 (#14667)

diff --git a/lib/version.rb b/lib/version.rb
index 67b9609..80ba316 100644
--- a/lib/version.rb
+++ b/lib/version.rb
@@ -10,7 +10,7 @@ module Discourse
       MAJOR = 2
       MINOR = 8
       TINY  = 0
-      PRE   = 'beta6'
+      PRE   = 'beta7'
 
       STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
     end

GitHub sha: ae91818c194a79b9a5216f2a2709a331f3509207

This commit appears in #14667 which was approved by jomaxro. It was merged by nlalonde.