fix: failing tests

Some tests failing due to expected associations being mandatory.  Resolved this wiusing optional: true for meeting_note and meeting_talk models

Author: davidmillen50

app/models/meeting_talk.rb

@@ -1,6 +1,6 @@
 class MeetingTalk < ApplicationRecord
-  belongs_to :speaker, class_name: 'Member'
-  belongs_to :meeting
+  belongs_to :speaker, class_name: 'Member', optional: true
+  belongs_to :meeting, optional: true
 
   validates :title, :abstract, :speaker, :meeting, presence: true
 

app/models/member_note.rb

@@ -1,6 +1,6 @@
 class MemberNote < ApplicationRecord
-  belongs_to :member
-  belongs_to :author, class_name: 'Member'
+  belongs_to :member, optional: true
+  belongs_to :author, class_name: 'Member', optional: true
 
   validates :member, :author, :note, presence: true
 end