Filter with capital letter of Cyrillic alphabet

Bugs
1

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Issue Summary
filtering does not work, for example, by title or html, if the request contains a Cyrillic capital letter (and of course it is in the title/html)
I’m trying to filter out titles with text: “Кто есть кто”

This works in any case (“то есть” etc.), as long as there is no uppercase letter, if you replace it with a lowercase letter (“кто есть”), the result is also empty.

I use it the same way with @tryghost/content-api but it doesn’t matter.

http://localhost:3000/ghost/api/content/posts/?key=b8bb22f32ff9e2a67242bb2cba&filter=title:~'Кто есть'

Steps to Reproduce

  1. Create post with title: “Кто есть кто”
  2. Create request with filter by title “Кто есть”

Setup information

Ghost Version
Ghost version: 5.105.0

Node.js Version
v20.18.1

How did you install Ghost?
Provide some details about your install of Ghost if you are self-hosting.

docker FROM node:20-alpine

Provide details of your host & operating system
docker FROM node:20-alpine

Database type
SQLite 3

Browser & OS version
—

Relevant log / error output

INFO "GET /ghost/api/content/posts/?key=b8bb22f32ff9e2a67242bb2cba&filter=title:~%27%D0%9A%D1%82%D0%BE%20%D0%B5%D1%81%D1%82%D1%8C%27" 200 11ms