I tried to run an ad hoc pipeline for this PR (here), but it failed because the Beaker rake task is missing. I think you'll need to re-add the Vox Beaker gem (like I did here) and try running this in the ad hoc pipeline to make sure that it runs cleanly.
I'm a little concerned about the amount of changes. Would it be possible to split this up and just bump stdlib dependency in metadata.json and release the module using the old release automation?
This commit updates and applies the 2.7.5 PDK template to prepare for the v1.15.0 release