TortoiseGitMerge support link is outdated

The "and support the developers" link in the "About TortoiseGitMerge" dialog leads to http://tortoisesvn.tigris.org/contributors.html. That page does not seem to exist anymore. It should probably either link to https://tortoisesvn.net/donate.html or https://tortoisegit.org/donate/.

The "About" dialog of TortoiseGit itself is not affected.

What steps will reproduce the problem?

1. Open TortoiseGitMerge
2. Select "File" > "About TortoiseGitMerge"
3. Click "and support the developers"
   ❌ The link leads to a dead page

What version of TortoiseGit and Git are you using? On what operating system?

Microsoft Windows [Version 10.0.19043.1415]

TortoiseGit 2.12.0.0
git version 2.34.1.windows.1

TortoiseGitMerge 2.12.0.0 - 64 Bit, Mar 31 2021
libsvn_diff 1.8.0, -dev
apr 1.6.5
apr-util 1.6.1