Revert "updating the JWT version to 2.7"

This reverts commit bd2a4df.

Author: sachshet

cybersource_rest_client.gemspec

@@ -32,10 +32,8 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'json', '~> 2.1', '>= 2.1.0'
   s.add_runtime_dependency 'activesupport', '>= 6.0.3.2', '< 8.0'
   s.add_runtime_dependency 'interface','~> 1.0', '>= 1.0.4'
-  s.add_runtime_dependency 'jwt', '2.7.0'
+  s.add_runtime_dependency 'jwt', '2.1'
   s.add_runtime_dependency 'addressable', '~> 2.3', '>= 2.3.0'
-  s.add_runtime_dependency 'time', '~> 0.2.2'
-
 
   s.add_development_dependency 'simplecov'
   s.add_development_dependency 'rubocop', '~> 0.57.2'

lib/AuthenticationSDK/authentication/jwt/JwtToken.rb

@@ -3,14 +3,12 @@
 require 'jwt'
 require 'json'
 require 'active_support'
-require 'time'
 require_relative '../../core/ITokenGeneration.rb'
 require_relative '../../util/Constants.rb'
 require_relative '../../util/ExceptionHandler.rb'
 require_relative '../../util/Cache.rb'
 require_relative '../../authentication/payloadDigest/digest.rb'
 require_relative '../../logging/log_factory.rb'
-
 public
   class GenerateJwtToken
     @log_obj
@@ -68,9 +66,9 @@ def getJwtBody(request_type, gmtDatetime, merchantconfig_obj)
 
         # Note: Digest is not passed for GET calls
         digest = DigestGeneration.new.generateDigest(payload)
-        jwtBody = "{\n      \"digest\":\"" + digest + "\", \"digestAlgorithm\":\"SHA-256\", \"iat\":" + Time.parse(gmtdatetime).to_i.to_s + "}"
+        jwtBody = "{\n      \"digest\":\"" + digest + "\", \"digestAlgorithm\":\"SHA-256\", \"iat\":\"" + gmtDatetime + "\"}"
       elsif request_type == Constants::GET_REQUEST_TYPE || request_type == Constants::DELETE_REQUEST_TYPE
-        jwtBody = "{\n \"iat\":" + Time.parse(gmtdatetime).to_i.to_s + "\n} \n\n"
+        jwtBody = "{\n \"iat\":\"" + gmtDatetime + "\"\n} \n\n"
       else
         raise StandardError.new(Constants::ERROR_PREFIX + Constants::INVALID_REQUEST_TYPE_METHOD)
       end