Download the rpm, then install:

sudo rpm -ivh Renderman...rpm

This will install the installer at /opt/pixar/

To get the installer to run you have to point it to a few additional libraries

sudo ln -s /usr/lib64/libssl.so.1.0.2o /opt/pixar/RenderMan-Installer-ncr-xx/lib/3rdparty/Qt-5.6.1/lib/libssl.so
sudo ln -s /usr/lib64/libcrypto.so.1.0.2o /opt/pixar/RenderMan-Installer-ncr-xx/lib/3rdparty/Qt-5.6.1/lib/libcrypto.so
sudo ln -s /usr/autodesk/maya2022/lib/libicudata.so.50 /opt/pixar/RenderMan-Installer-ncr-24.1/lib/3rdparty/Qt-5.12.6/lib/libicudata.so.50
sudo ln -s /usr/autodesk/maya2022/lib/libicuuc.so.50 /opt/pixar/RenderMan-Installer-ncr-24.1/lib/3rdparty/Qt-5.12.6/lib/libicuuc.so.50

Now you should be able to run:

sudo /opt/pixar/RenderMan-Installer-xx/bin/RenderManInstaller