move require lines around so they make more sense

bin/aws-ha-release.rb

@@ -1,9 +1,7 @@
 #!/usr/bin/env ruby
 
 begin
-  require 'aws-sdk'
   require 'trollop'
-  require 'timeout'
 rescue LoadError => e
   puts "The #{e.message.split('-').last.strip} gem must be installed."
   raise

lib/aws-missing-tools/aws-ha-release/aws-ha-release.rb

@@ -1,3 +1,4 @@
+require 'aws-sdk'
 require 'timeout'
 
 class AwsHaRelease