fastlane: Check GITHUB_KEYS_REPOSITORY_TOKEN and emptiness also

Signed-off-by: Kristofer Rye <[email protected]>

Author: rye

fastlane/lib/util.rb

@@ -25,7 +25,9 @@ def should_beta?
 
 # does the build have the api keys needed for signing?
 def api_keys_available?
-	ENV['MATCH_PASSWORD'] && ENV['FASTLANE_PASSWORD']
+	ENV['MATCH_PASSWORD'] && !ENV['MATCH_PASSWORD'].empty? &&
+		ENV['FASTLANE_PASSWORD'] && !ENV['FASTLANE_PASSWORD'].empty? &&
+		ENV['GITHUB_KEYS_REPOSITORY_TOKEN'] && !ENV['GITHUB_KEYS_REPOSITORY_TOKEN'].empty?
 end
 
 # is this a build of a tagged commit?