Draft: Add wildcard support to cache

What does this MR do and why?

Restores wildcard expansion functionality for files.

References

#572701

Screenshots or screen recordings

With the following config (or edited for whichever files you've got in the repo):

test_wildcard_fix:
  cache:
    - key:
        prefix: wildcard
        files:
          - "*.yml"
      paths:
        - wildcard
    - key:
        prefix: non-wildcard
        files:
          - "README.md"
      paths:
        - non-wildcard
  script:
    - echo hey

Run a pipeline. In the logs, you should see the hash being appended:

Creating cache wildcard-<HASH>-23-protected...

Creating cache non-wildcard-<HASH>-23-protected...

On master, this will be

wildcard-default-23-protected

NOTE: TBD

MR acceptance checklist

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