Update get branches api

app/services/gitea/repository/branches/get_service.rb

@@ -0,0 +1,27 @@
+# Retrieve a specific branch from a repository, including its effective branch protection
+class Gitea::Repository::Branches::GetService < Gitea::ClientService
+  attr_reader :owner, :repo, :branch, :token
+
+  #  ex:
+  #   Gitea::Repository::Branches::GetService.new(@project.owner, @project.identifier, 'master', current_user.gitea_token).call
+  def initialize(owner, repo, branch, token)
+    @owner  = owner
+    @repo   = repo
+    @branch = branch
+    @token  = token
+  end
+
+  def call
+    response = get(url, params)
+    render_data(response)
+  end
+
+  private
+  def params
+    Hash.new.merge(token: token)
+  end
+
+  def url
+    "/repos/#{owner}/#{repo}/branches/#{branch}".freeze
+  end
+end

app/services/gitea/repository/branches/list_service.rb

@@ -1,4 +1,4 @@
-class Gitea::Repository::BranchesService < Gitea::ClientService
+class Gitea::Repository::Branches::ListService < Gitea::ClientService
   attr_reader :user, :repo
 
   def initialize(user, repo)