Make name an optional parameter of releases

This removes the validation for the name, which enables legacy releases
that omitted this value to be imported again.

Closes https://gitlab.com/gitlab-org/gitlab/issues/31868

app/models/release.rb

@@ -22,7 +22,6 @@ class Release < ApplicationRecord
   accepts_nested_attributes_for :links, allow_destroy: true
 
   validates :description, :project, :tag, presence: true
-  validates :name, presence: true, on: :create
   validates_associated :milestone_releases, message: -> (_, obj) { obj[:value].map(&:errors).map(&:full_messages).join(",") }
 
   scope :sorted, -> { order(released_at: :desc) }

ee/changelogs/unreleased/31868-make-name-optional-parameter-of-release-entity.yml

+---
+title: Make name an optional parameter of releases
+merge_request: 16647
+author:
+type: changed

spec/models/release_spec.rb

@@ -20,7 +20,6 @@ RSpec.describe Release do
   describe 'validation' do
     it { is_expected.to validate_presence_of(:project) }
     it { is_expected.to validate_presence_of(:description) }
-    it { is_expected.to validate_presence_of(:name) }
 
     context 'when a release exists in the database without a name' do
       it 'does not require name' do