Feat: add Django 42 Support

[joshyu]

Description

Some projects need to add Django 4.2 support to v2.2.x. django-filer 2.x is susceptible to SVG XSS attacks and we strongly recommend upgrading it to 3.x.

Checklist

• [x] I have opened this pull request against release/2.2.x
• [x] I have added or modified the tests when changing logic
• [x] I have followed the conventional commits guidelines to add meaningful information into the changelog
• [x] I have read the contribution guidelines and I have joined #workgroup-pr-review on Slack to find a “pr review buddy” who is going to review my pull request.

[fsbraun]

LGTM, too. IHMO we should at least add a warning to the README that filer 2.x is susceptible to SVG XSS attacks and that we strongly recommend to upgrade to 3.x.

There should not be any migrations induced, as far as I can see.

[joshyu]

LGTM, too. IHMO we should at least add a warning to the README that filer 2.x is susceptible to SVG XSS attacks and that we strongly recommend to upgrade to 3.x.

There should not be any migrations induced, as far as I can see.

@fsbraun , I will update the readme.md to add the warning message. the migration file is to fix the test error.

[joshyu]

@marksweb / @fsbraun ,

Can you review and merge it if it's fine? Cheers.