Improve Cocoapods related scripts

[AlexV525]

Before:

Analyzing dependencies
5.1.2
using sdk with no_pay
ignore_security: 
app_id:  universal_link: 
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/uri/rfc3986_parser.rb:18:in `rescue in split': bad URI(is not URI?): nil (URI::InvalidURIError)
        from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/uri/rfc3986_parser.rb:15:in `split'
        from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/uri/rfc3986_parser.rb:73:in `parse'
        from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/uri/common.rb:234:in `parse'
        from /Users/alex/dev/garages/flutter/fluwx/ios/wechat_setup.rb:61:in `block in <main>'
        from /Users/alex/dev/garages/flutter/fluwx/ios/wechat_setup.rb:54:in `each'
        from /Users/alex/dev/garages/flutter/fluwx/ios/wechat_setup.rb:54:in `<main>'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/uri/rfc3986_parser.rb:16:in `split': undefined method `to_str' for nil:NilClass (NoMethodError)
        from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/uri/rfc3986_parser.rb:73:in `parse'
        from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/uri/common.rb:234:in `parse'
        from /Users/alex/dev/garages/flutter/fluwx/ios/wechat_setup.rb:61:in `block in <main>'
        from /Users/alex/dev/garages/flutter/fluwx/ios/wechat_setup.rb:54:in `each'
        from /Users/alex/dev/garages/flutter/fluwx/ios/wechat_setup.rb:54:in `<main>'
Downloading dependencies
Generating Pods project
Integrating client project
Pod installation complete! 

After

Analyzing dependencies
[fluwx] 5.1.2
[fluwx] Using SDK with no_pay
Downloading dependencies
Generating Pods project
Integrating client project
Pod installation complete!