Fix failing specs.

spec/components/pretty_text_spec.rb

@@ -432,6 +432,8 @@ HTML
   describe "custom emoji" do
     it "replaces the custom emoji" do
       CustomEmoji.create!(name: 'trout', upload: Fabricate(:upload))
+      Emoji.clear_cache
+      
       expect(PrettyText.cook("hello :trout:")).to match(/<img src[^>]+trout[^>]+>/)
     end
   end

spec/jobs/rebake_custom_emoji_posts_spec.rb

@@ -2,12 +2,13 @@ require 'rails_helper'
 
 RSpec.describe Jobs::RebakeCustomEmojiPosts do
   it 'should rebake posts that are using a given custom emoji' do
-    custom_emoji = CustomEmoji.create!(name: 'test', upload: Fabricate(:upload))
+    upload = Fabricate(:upload)
+    custom_emoji = CustomEmoji.create!(name: 'test', upload: upload)
     Emoji.clear_cache
     post = Fabricate(:post, raw: 'some post with :test: yay')
 
     expect(post.reload.cooked).to eq(
-      "<p>some post with <img src=\"/uploads/default/0/1234567890123456.png?v=3\" title=\":test:\" class=\"emoji emoji-custom\" alt=\":test:\"> yay</p>"
+      "<p>some post with <img src=\"#{upload.url}?v=3\" title=\":test:\" class=\"emoji emoji-custom\" alt=\":test:\"> yay</p>"
     )
 
     custom_emoji.destroy!