ci go mod cache is not being used

[kruskall]

APM Server version (apm-server version): main

Description of the problem including expected versus actual behavior:

For some reason github action jobs are not reusing the code cache. This is leading to increased CI time and costs

Steps to reproduce:

Please include a minimal but complete recreation of the problem,
including server configuration, agent(s) used, etc. The easier you make it
for us to reproduce it, the more likely that somebody will take the time to
look at it.

1. open a PR or watch the commit CI in main

Provide logs (if relevant):

[kruskall]

Closing, the last remaining issue is with the package job.

A request has been opened with the robots team