Hello ertgl06,
the VST plugins for bridging are no longer included in Rack v1 though they still work with v1. You have to download and install v0.6 and copy the files within the installation folder to your vst-folder. After that you can update to the latest version of Rack v1 again.
https://vcvrack.com/downloads/Rack-0.6.2c-mac.dmg
https://vcvrack.com/downloads/Rack-0.6.2c-win.exe
https://vcvrack.com/downloads/Rack-0.6.2c-lin.zip