Recommend upgrade to newer dev

[rlucente-se-jboss]

Reviewing code and noticed something re RHEL 7 and it's lifecycle. The redhawk installation requires the following:

               devtoolset-9-gcc-c++ \
               devtoolset-9-make \

Developer Toolset 9 is no longer supported by Red Hat since 2021-11-24. Since Red Hat is no longer providing updates, downstream rebuilds of RHEL 7 will not have patches unless they break their own bug-for-bug compatibility goals.

Many folks remaining on RHEL 7 either need or want a new C or C++ compiler for their tooling, but the Developer Toolset only has a two year support life-cycle.

I strongly encourage you to upgrade to devtoolset-11. This article lists the currently supported and retired software collections for RHEL 7 ... https://access.redhat.com/support/policy/updates/rhscl-rhel7