It seems that overnight (sometime between 1am and 4am UTC) GitHub have
made a change to the permissions that triggered workflow runs have, as
a result, our CI pipeline is _entirely_ broken right now :(
For example
<https://github.com/apache/airflow/runs/1918333405?check_suite_focus=true>
docker push
```
Trying to push the image
docker.pkg.github.com/apache/airflow/master-python3.6-ci-v2:574640652.
Number of try: 2
docker push
docker.pkg.github.com/apache/airflow/master-python3.6-ci-v2:574640652
The push refers to repository
[docker.pkg.github.com/apache/airflow/master-python3.6-ci-v2]
..
denied: Resource not accessible by integration
```
I've opened a support ticket with GitHub -- let's see how quickly they
are able to respond :(
(cc builds as this might affect other ASF projects too if you've copied
our approach of docker builds in CI)
-ash
