Package incorrectly states that it does provide `laminas/laminas-cache-storage-implementation`

[boesing]

As per composer.json, this package is stating that it provides laminas/laminas-cache-storage-implementation via provide. Only packages which do actually provide an implementation should use provide.

There is a good read about dependency inversion here.

Please remove this from the projects composer.json to avoid future problems with incompatibilities between laminas-cache and doctrine/doctrine-module.

[TomHAnderson]

100% @boesing Do you want to provide a PR to put your name in the repo? Else it's a simple fix I'll do promptly.

[boesing]

Created #821, feel free to re-target to 6.0.x in case you want to release this as a patch.

[driehle]

Closed with #821