Do not expect file stubs in definitions specs

They may be called multiple times and we actually must not care in specs

spec/dummy/db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2024_04_11_155901) do
+ActiveRecord::Schema[7.2].define(version: 2024_04_11_155901) do
   create_table "alchemy_attachments", force: :cascade do |t|
     t.string "name"
     t.string "file_name"

spec/libraries/page_layout_spec.rb

@@ -22,8 +22,8 @@ module Alchemy
       context "with a YAML file including a symbol" do
         let(:yaml) { "name: :symbol" }
         before do
-          expect(File).to receive(:exist?).and_return(true)
-          expect(File).to receive(:read).and_return(yaml)
+          allow(File).to receive(:exist?).and_return(true)
+          allow(File).to receive(:read).and_return(yaml)
         end
 
         it "returns the definition without error" do

spec/models/alchemy/element_spec.rb

@@ -233,8 +233,8 @@ module Alchemy
         let(:yaml) { "- name: :symbol" }
 
         before do
-          expect(File).to receive(:exist?).and_return(true)
-          expect(File).to receive(:read).and_return(yaml)
+          allow(File).to receive(:exist?).and_return(true)
+          allow(File).to receive(:read).and_return(yaml)
         end
 
         it "returns the definition without error" do
@@ -246,8 +246,8 @@ module Alchemy
         let(:yaml) { "- default: 2017-12-24" }
 
         before do
-          expect(File).to receive(:exist?).and_return(true)
-          expect(File).to receive(:read).and_return(yaml)
+          allow(File).to receive(:exist?).and_return(true)
+          allow(File).to receive(:read).and_return(yaml)
         end
 
         it "returns the definition without error" do
@@ -259,8 +259,8 @@ module Alchemy
         let(:yaml) { "- format: !ruby/regexp '/\A[^@\s]+@([^@\s]+.)+[^@\s]+\z/'" }
 
         before do
-          expect(File).to receive(:exist?).and_return(true)
-          expect(File).to receive(:read).and_return(yaml)
+          allow(File).to receive(:exist?).and_return(true)
+          allow(File).to receive(:read).and_return(yaml)
         end
 
         it "returns the definition without error" do