Add support for psr/simple-cache v2 and v3

[rmn-eloha-jouny]

Issue #, if available:
I don't think i need to create an issue for this.

Description of changes:
I need this change when peer-dependencies require different version of the psr/simple-cache package.
In my case, the package mobiledetect/mobiledetectlib require version 3. Since these versions do not change public interface (only type safety was added) i think it is safe to allow this.

[rmn-eloha-jouny]

Any chance to get this PR reviewed ?

[Timic3]

We are also blocked by this issue. Can this get merged any time soon?

[stobrien89]

@rmn-eloha-jouny,

Thanks for the contribution. Can you add a changelog entry by creating a json file (e.g. simple-cache.json) in .changes/nextrelease? you can label this as an enhancement. It should follow the format below (you can feel free to copy/paste this).

[
  {
    "type": "enhancement",
    "category": "",
    "description": "Adds support for psr/simple-cache v2 and v3"
  }
]

[rmn-eloha-jouny]

Thank you @stobrien89. I've added the changelog.