Clarification regarding the GitHub Actions pre-submit testing

[Magnus Ihse Bursie]

There have been a lot of questions and uncertainty about the recently 
enabled GitHub Actions pre-submit testing. Let me clarify a few points 
about these GHA tests.

* It is not a requirement to have green results from GHA tests to 
integrate a fix. Nothing in the OpenJDK bylaws, or the JDK project rules 
requires this.

* That being said, you should of course only integrate correct and 
working code. If you believe GHA is a tool for you to discover bugs, by 
all means, use it. But if it shows up red, that does not mean *in 
itself* that your code is broken.

* The Build Team will not engage in solving problems with building or 
running tests on GHA machines. We have no access to these machines, and 
no ability to fix problems with them. Any requests to fix issues with 
GHA will be ignored.

* Oracle employees should not engage with GHA issues. Oracle has its own 
internal, and much superior, building and testing system. Oracle 
employees should use and rely on this system for building and testing 
code, instead of GHA.

/Magnus