build: gem server added

Author: mrasif

imagekit-sdk.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |spec|
   # Prevent pushing this gem to RubyGems.org. To allow pushes either set the 'allowed_push_host'
   # to allow pushing to a single host or delete this section to allow pushing to any host.
   if spec.respond_to?(:metadata)
-    spec.metadata["allowed_push_host"] = "TODO: Set to 'http://mygemserver.com'"
+    spec.metadata["allowed_push_host"] = "https://rubygems.org"
   else
     raise "RubyGems 2.0 or newer is required to protect against " \
       "public gem pushes."