[jfx16] Integrated: 8259639: GitHub actions: build fails on Linux due to missing apt-get update

[Kevin Rushforth]

On Tue, 12 Jan 2021 17:01:40 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> Simple fix to the `submit.yml` script to run `apt-get update` prior to installing needed packages on Linux. Without this, the request to install packages can fail to find the requested pacakges due to an out-of-date cache.
> 
> Compare the [failing build](https://github.com/kevinrushforth/jfx/actions/runs/480626290) before the fix with the [successful build](https://github.com/kevinrushforth/jfx/actions/runs/480641431) after the fix.
> 
> Note that this is targeted to `jfx16` so that any subsequent pull request for `jfx16` will be able to have a successful build on Linux.

This pull request has now been integrated.

Changeset: 9dd2058f
Author:    Kevin Rushforth <kcr at openjdk.org>
URL:       https://git.openjdk.java.net/jfx/commit/9dd2058f
Stats:     1 line in 1 file changed: 1 ins; 0 del; 0 mod

8259639: GitHub actions: build fails on Linux due to missing apt-get update

Reviewed-by: arapte, pbansal

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PR: https://git.openjdk.java.net/jfx/pull/375