Update Membership Page

We've had a few changes to membership and need to update the quote on this page from: https://ecdtools.eclipse.org/membership/

Join industry leaders like Ericsson, IBM, Obeo, Red Hat, and SAP as we define and build the future of web and cloud development tools.

To:

Join industry leaders like Arm, Ericsson, Obeo, Red Hat, and ST as we define and build the future of web and cloud development tools.