RFR: 8283402: Update to gcc 11.2 on Linux

[Johan Vos]

On Fri, 25 Mar 2022 12:19:10 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> This patch updates the compiler to gcc 11.2 on Linux, in order to match JDK 17 -- see [JDK-8283057](https://bugs.openjdk.java.net/browse/JDK-8283057).
> 
> I ran a full build and test, including media and WebKit.

.github/workflows/submit.yml line 86:

> 84:           set -x
> 85:           sudo apt-get update
> 86:           sudo apt-get install libgl1-mesa-dev libx11-dev libxxf86vm-dev libxt-dev pkg-config libgtk2.0-dev libgtk-3-dev libxtst-dev gcc-11 g++-11

Did this install 11.2? The CI is using Focal, and afaik there is no gcc-11.2 for focal?

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PR: https://git.openjdk.java.net/jfx/pull/761