[CT-2399] Consolidate changelogs into single rc

[emmyoop]

We want to consolidate all beta changelogs into a single rc changelog in core and all adapters.

This is not currently automated so need we need to do this manually, locally.

Steps to follow:

1. Create your branch off the 1.5.latest branch. This means we need to do this step after cutting the 1.5..latest branch with the cut-release-branch action

2. Set the env var for the core team: TODO: check that everyone is included

export CHANGIE_CORE_TEAM="emmyoop gshank QMalcolm peterallenwebb stu-k ChenyuLInx aranke iknox-fa versusfacit  nssalian mcknight-42 colin-rogers-dbt michelleark jtcohen6 dbeatty10 Mathyoub mikealfare"

3. Generate the consolidated changelog

changie batch 1.5.0 --include 1.5.0 --move-dir 1.5.0 --prerelease rc1

4. Merge and open PR against 1.5.latest

5. Run the release as normal. The release is smart enough to see that the changelog for 1.5.0rc1 already exists and should skip that step of the release.

[mikealfare]

I updated the comment above to include myself in CHANGIE_CORE_TEAM

[mikealfare]

We need to adjust the third step. Changie generates the new file, 1.5.0rc1.md, but then immediately deletes it because rc1 is pre-release (--remove-prereleases). So the command should be:

changie batch 1.5.0 --include 1.5.0 --move-dir 1.5.0 --prerelease rc1

And then we would just need to manually delete those change logs.

[mikealfare]

@aranke Note that I corrected the command in the original post, but then re-posted the incorrect one in my comment. I just fixed it.