Update to 7.0.0-SNAPSHOT

Signed-off-by: Rob Winch <362503+rwinch@users.noreply.github.com>

git/hooks/prepare-forward-merge

@@ -4,7 +4,7 @@ require 'net/http'
 require 'yaml'
 require 'logger'
 
-$main_branch = "6.5.x"
+$main_branch = "7.0.x"
 
 $log = Logger.new(STDOUT)
 $log.level = Logger::WARN