This PR makes the Arduino tests faster by looking for "Go back to editor" instead of "Upload complete"
The effect of this is that the test run faster on failure, and is unchanged when it succeeds
It also adds logging of window.avrdudeLog at the end of each test to help debug it on failure
It also makes the tests run one by one as a experiment to see if this makes the test less flakey
The Github Action only uses one worker (because it has 1 thread) so it does not slow that down.
This PR makes the Arduino tests faster by looking for "Go back to editor" instead of "Upload complete" The effect of this is that the test run faster on failure, and is unchanged when it succeeds
It also adds logging of
window.avrdudeLogat the end of each test to help debug it on failureIt also makes the tests run one by one as a experiment to see if this makes the test less flakey The Github Action only uses one worker (because it has 1 thread) so it does not slow that down.