Add branch+commit to the "What to Test" field in TestFlight

[bjornoleh]

Propose to add this to OiAPS, as previously done here by @MikePlante1:
Artificial-Pancreas/iAPS#360

This PR includes a feature for uploading the branch name and git reference as a “changelog” to TestFlight, displayed under “What to Test” for each build. However , there is a bug in AppStore Connect / TestFlight, where fastlane fails to upload changelog if it was never entered before.

The workaround is to make a manual “Test Details” entry from AppStoreConnect (ASC), then build again. Then, the branch and git ref will be displayed under "What to Test" in both TestFlight and ASC.

This is a known issue, with various proposed workarounds including this one:
fastlane/fastlane#16129 (comment)

(This was originally included in another PR, but did not belong there ,hence I created this issue report instead)
Asssigned to @MikePlante1, including the required documentation :-)

[bjornoleh]

@sethgagnon , to get #63 merged, we should also add documentation about the workaround mentioned above. Would you like to add this to the docs?

[bjornoleh]

PR #63 was targeted at the alpha-branch, and is merged there. Here is the PR to dev: #76

[marionbarker]

I think this should be closed but deferring to @bjornoleh

• The documentation has already been updated with the required steps to make this work
  • See https://github.com/nightscout/Open-iAPS-docs/blob/Operate-Folder-Updates/docs/EN/operate/build.md#one-time-update-to-display-branch-and-commit-in-testflight
• This modification is already in the alpha branch for Browser Building.

[bjornoleh]

@marionbarker , there is a documented way to activate the change log in TestFlight, but unfortunately it’s an unnecessarily cumbersome one. The intention was that this should go into the docs instead.:

#63 (comment)

Could l someone replace the existing one with this? And perhaps make a note that it’s optional/ non-critical for the setup of the TestFlight app

Maybe @sethgagnon could do this?

Thanks 😊

[bjornoleh]

Closing this issue as completed now that @marionbarker added the easy instructions to the docs. Thanks!

nightscout/trio-docs@7d5451d