[Linux] Cannot run editor as Glibc 3.4.20-21 is required but unavailable in CentOS 7

As of 2019.3.0a11, Unity (Linux) requires Glibc 3.4.20/3.4.21. As these versions of Glibc are currently unavailable in CentOS 7, the editor cannot be run, reporting the following errors:

~/Unity-2019.3.0a6/Editor/Unity: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by ~/Unity-2019.3.0a6/Editor/Unity)
~/Unity-2019.3.0a6/Editor/Unity: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by ~/Unity-2019.3.0a6/Editor/Unity)

Steps to reproduce:
1) On a machine running CentOS 7, install Unity 2019.3.0a6
2) Open the Unity installation
3) Observe the noted Glibc errors reported to console and that the editor will fail to run