Update DDLoggerSwift.podspec

Author: DamonHu

DDLoggerSwift.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 s.name = 'DDLoggerSwift'
 s.swift_version = '5.0'
-s.version = '5.1.8'
+s.version = '5.1.9'
 s.license= { :type => "MIT", :file => "LICENSE" }
 s.summary = 'The iOS side displays the output log log on the screen, and can generate log file sharing, which is convenient for debugging information'
 s.homepage = 'https://github.com/DamonHu/DDLoggerSwift'