fix(locking): Accept mixed as value on setTTL

[solracsf]

Summary

Fix:

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

Underlying compareSetTTL also accepts mixed values.

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)

[solracsf]

/backport to stable30

[solracsf]

/backport to stable29

[solracsf]

/backport to stable28

[kesselb]

Thank you 👍

I've spotted that error some days ago in a log.
The fix looks okay to me, but I'm not familiar enough with the locking code to approve.

[provokateurin]

Probably copy-pasta from the ttl parameter 👍

[backportbot]

The backport to stable28 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable28
git pull origin stable28

# Create the new backport branch
git checkout -b backport/48689/stable28

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick 8f7784bd

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/48689/stable28

Error: No changes found in backport branch

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Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.