Support caching when repository contains multiple, nested go projects

[cloudshiftchris]

Description:
Have a large modulith composed of multiple separate golang projects.

When using setup-go it complains that it can't restore the cache:
Warning: Restore cache failed: Dependencies file is not found in /home/runner/work/---/---. Supported file pattern: go.sum

There is no go.sum a the root; in fact, there are multiple go.sum files, one for each nested go project.

Perhaps there could be a pattern for dependencies files e.g. **/*.go.sum.

Justification:
Provide go module caching capabilities for multi-module projects.

[dsame]

Hello @cloudshiftchris , can you please double check this commend does not answer the question?

#371 (comment)

[cloudshiftchris]

That does work - thanks. Would be good to show an example of that, in addition to #417.

[dsame]

Thank you @cloudshiftchris , i am closing the issue as it is solved and more use cases samples are on go