Remove `follow` creation from `ListAccount` fabricator (#31902)

spec/fabricators/list_account_fabricator.rb

@@ -2,6 +2,8 @@
 
 Fabricator(:list_account) do
   list
-  account
-  before_create { |list_account, _| list_account.list.account.follow!(account) }
+
+  initialize_with do
+    resolved_class.new(list: list, account: list.account)
+  end
 end

spec/models/list_account_spec.rb

@@ -9,7 +9,7 @@ RSpec.describe ListAccount do
       let(:list) { Fabricate :list, account: follow.account }
 
       it 'finds and sets the follow with the list account' do
-        list_account = described_class.create list: list, account: follow.target_account
+        list_account = Fabricate :list_account, list: list, account: follow.target_account
         expect(list_account)
           .to have_attributes(
             follow: eq(follow),
@@ -23,7 +23,7 @@ RSpec.describe ListAccount do
       let(:list) { Fabricate :list, account: follow_request.account }
 
       it 'finds and sets the follow request with the list account' do
-        list_account = described_class.create list: list, account: follow_request.target_account
+        list_account = Fabricate :list_account, list: list, account: follow_request.target_account
         expect(list_account)
           .to have_attributes(
             follow: be_nil,
@@ -33,10 +33,8 @@ RSpec.describe ListAccount do
     end
 
     context 'when list owner is the account' do
-      let(:list) { Fabricate :list  }
-
       it 'does not set follow or follow request' do
-        list_account = described_class.create list: list, account: list.account
+        list_account = Fabricate :list_account
         expect(list_account)
           .to have_attributes(
             follow: be_nil,