Install instructions for openSUSE Tumbleweed

Hi team

Unfortunately, the instruction for openSUSE on [Linux (RPM/DEB/APK) installer packages](https://adoptium.net/installation/linux/) only works for Leap. If you try it on Tumbleweed, it can't work, because Tumbleweed uses the release date for `$(. /etc/os-release; echo $VERSION_ID)`.
I'd suggest to put a hint for Tumbleweed to use the latest Leap version instead of the dynamic part into the instructions.

Regards
Matthias

Start with the linked Linux (RPM/DEB/APK) installer packages instructions and compare the openSUSE guidance with Tumbleweed's VERSION_ID behavior. Update the instructions with a Tumbleweed hint to use the latest Leap version, then verify that the resulting commands are clear and usable.

Written by the indexing model from the issue text.