fastlane: Codesign fails both on local system and CI System

I am trying to create the temporary keychain and install p12 certificate into that keychain. In the process of building, the building process is blocked at codesign level by asking the dialog to enter the login chain password and allow/deny option.

Here is fastfile content :

fastlane_version "2.49.0"

default_platform :ios


before_all do
ENV["CERTIFICATE_PASSWORD"] = "xyz"
ENV["KEYCHAIN_NAME"] = "fastlane"
end

before_each do |lane, options|

  create_keychain(
    name: ENV["KEYCHAIN_NAME"],
    default_keychain: true,
    unlock: true,
    timeout: 3600,
    lock_when_sleeps: true,
    password:"123456"
  )

end

def remove_keychain
   begin
     delete_keychain(name: ENV["KEYCHAIN_NAME"] )
     rescue => exception
     UI.error("key chain not found")
     #raise exception
   end
end

  after_each do |lane, options|
    puts "after each :"
    remove_keychain
  end

   error do |lane, exception|
     remove_keychain
   end


desc "This will generate production variant build" 
  private_lane :build_app do |options|
  	
   import_certificate(
     certificate_path: options[:certificate_path],
     certificate_password: options[:certificate_password],
     keychain_name: ENV["KEYCHAIN_NAME"],
     keychain_password:"123456",
     log_output:true
   )
sigh(
       #skip_certificate_verification:true
        app_identifier: options[:app_identifier],
        adhoc: options[:adhoc],
        provisioning_name: options[:provisioning_name],
        filename: options[:profile],
        team_id: options[:team_id] 
        )
	
gym(
     # Build your app - more options available
    	scheme: options[:scheme]
   )
  end