fix(lock): Call the correct getTTL method

[solracsf]

Summary

We are checking for TTL, not the lock type.

Fix:

OC\\Lock\\MemcacheLockingProvider::setTTL(): Argument #3 ($compare) must be of type ?int, string given

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[kesselb]

Thanks!

I've spotted that error in a log recently, but didn't have the opportunity to follow up. I think the easiest solution is to remove the type hint for setTTL $compare as the underlying methods accept mixed.

[solracsf]

Yeah I've realized it after submiting :)
I'll push another PR.