Enable new perms syncer by default

[0xnmn]

closes: https://github.com/sourcegraph/sourcegraph/issues/47160

This PR enables the new perms syncer by default.

Test plan

• new perms syncer should be running by default. check for logs
• create feature flag and set to false
• old runSchedule & runSync should log
• set feature flag to true
• new perms syncer should run.

[github-actions]

❌ Problem: the label i-acknowledge-this-goes-into-the-release is absent.
👉 What to do: we're in the next Sourcegraph release code freeze period. If you are 100% sure your changes should get released or provide no risk to the release, add the label your PR with i-acknowledge-this-goes-into-the-release.
❓ When does the freeze end? The code freeze is active until 2023-02-22 at 23:59 UTC.

[sourcegraph-bot]

Codenotify: Notifying subscribers in CODENOTIFY files for diff 3337387...0d53bdb.

Notify	File(s)
@indradhanush	enterprise/cmd/repo-updater/internal/authz/perms_syncer.go enterprise/cmd/repo-updater/internal/authz/perms_syncer_worker.go
@unknwon	enterprise/cmd/repo-updater/internal/authz/perms_syncer.go enterprise/cmd/repo-updater/internal/authz/perms_syncer_worker.go internal/authz/permssync/permssync.go internal/authz/permssync/permssync_test.go

[sashaostrikov]

Let's remove some logs and make some log messages more explicit.
Apart from that LGTM! 👍🏻

[sashaostrikov]

Two small fixes and we're good! 👍

[mrnugget]

LET
'S
GO