Code review comment for ~xnox/autopkgtest-cloud:all-proposed

https://code.launchpad.net/~hyask/autopkgtest-cloud/+git/autopkgtest-cloud/+merge/460240/comments/1235062

Here is an example output of what is now deployed in production. Be aware that this only affects new tests, and won't be available for old ones. If you don't have the `all-proposed` key in `testinfo.json`, then you'll have to parse the logs to get the info. But if you have it, then the info is available right away for you to use!

I'll close this MP as it's now been superseeded by a more generic handling of this. Thanks for the proposal anyway :-)