I’m not familiar with the SAP Cloud Platform, but it sounds like the restrictions are the same as they are in AWS Lambda — no permission to “install” anything. You can try to build a binary of Chromium using Docker with an image which is the same as or similar to the Linux used by SCP. (Perhaps this one.) The idea being that you build Chromium from source in an environment similar to that of SCP. Once you have the binary built, deploy it along with your code to SCP and execute it programmatically.