[PATCH v2 0/2] MR4846: gitlab: Fix and optimize cache configuration.

[Rémi Bernon (＠rbernon)]

This partially reverts commit 67f2da2a8d1f219f528bf820b3d6002c5f34d5e4 which
broke ccache cache as the job configurations were overriding the default
cache configuration from .wine-build instead of extending it.

It then also updates the ccache cache config to add a key and try to avoid cache
invalidation between jobs with different compilers.

--
  v2: gitlab: Add key to the jobs ccache cache config.
      gitlab: Use a common configure cache key prefix.

https://gitlab.winehq.org/wine/wine/-/merge_requests/4846