Move spec to right place

Author: biow0lf

spec/issue_tracker_spec.rb …rbit_github_plugin/issue_tracker_spec.rbspec/issue_tracker_spec.rb renamed to spec/errbit_github_plugin/issue_tracker_spec.rb spec/issue_tracker_spec.rb renamed to spec/errbit_github_plugin/issue_tracker_spec.rb

@@ -1,6 +1,8 @@
 # frozen_string_literal: true
 
-describe ErrbitGithubPlugin::IssueTracker do
+require "spec_helper"
+
+RSpec.describe ErrbitGithubPlugin::IssueTracker do
   describe ".label" do
     it "return LABEL" do
       expect(described_class.label).to eq described_class::LABEL