Add missing provide in composer.json

[snapshotpl]

Without this section user cannot install laminas-cache alone (this package provide implementation)

[driehle]

Since we don't have any storage adapter in require section of composer.json (only in require-dev), I don't thnk we should add the suggested provide configuration.

We either need to update docs saying that users need to require their own storage adapters together with DoctrineModule, or we'd need to require at least the memory cache adapter (and probably the filesystem adapter as well). Anyways, docs should probably be updated either way.

[snapshotpl]

What about this adapter https://github.com/doctrine/DoctrineModule/blob/4.3.x/src/Cache/DoctrineCacheStorage.php ?

[driehle]

Ok, forgot about that adapter 👍

[driehle]

Thanks @snapshotpl!