Try Shotgrid support — I found this link. There is a "contact support" button at the bottom.
It also says versions 2019 to 2022 are supported. You can install and use more than one version of Photoshop.
Supported Application Versions
This item has been tested and is known to be working on the following application versions:
2019 — 2022
Please note that it is perfectly possible, even likely, that it will work with more recent releases, however it has not yet been formally tested with these versions.
I don't use this plug-in, but I hope this helps.