Load Active Support's Object extensions

[jcouball]

If active_support/core_ext/object was not already loaded and there is an http error, the following undefined method error would be raised:

/home/xxxx/.rvm/gems/ruby-3.2.2/gems/jira-ruby-2.3.0/lib/jira/http_error.rb:11:in `initialize': undefined method `presence' for "Bad Request":String (NoMethodError)

      @message = response.try(:message).presence || response.try(:body)
                                       ^^^^^^^^^

The presence method is defined by Active Support's Object extensions.

To reproduce this issue, in the root of the project repository, save the following code to a file (say test.rb):

require 'jira-ruby'

response = Struct.new(:message, :body).new('my message', 'my body')

JIRA::HTTPError.new(response)

and then run with the following command run in the repository's root folder:

ruby -Ilib test.rb

This results in the following error:

/Users/couballj/SynologyDrive/Documents/Projects/jira-ruby/lib/jira/http_error.rb:11:in `initialize': undefined method `presence' for an instance of String (NoMethodError)

      @message = response.try(:message).presence || response.try(:body)
                                       ^^^^^^^^^

This PR adds the require statement to load these Active Support extensions.

After this change, there is no error when the above script is run.

[jcouball]

@bobbrodie This PR is ready for review.

[jcouball]

I included an extra commit I didn't mean to. Closing this PR and opening a new one.