chore: review sync logging - WPB-16000

[jullianm]

WPB-16000 [iOS] Review logging of sync mechanism

Issue

This PR improves logging in the new sync mechanism (V2, V3) to measure time each sync phase takes to complete with dedicated tags:

• sync_type: initial vs incremental
• sync_version: v1 (legacy), v2 (without async stream notifs), v3 (with async stream notifs)
• sync_phase: pulling self user, pulling conversations, pulling feature configs..
• duration

Similar logging was introduced for legacy sync (V1) so we can compare durations between sync versions.

Also added some new logs for the new NSE.

NEW SYNC LOGS (V2)

LEGACY SYNC LOGS

Testing

Describe how to test.

Optional: attachments like images, videos, etc.

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Checklist

• Title contains a reference JIRA issue number like [WPB-XXX].
• Description is filled and free of optional paragraphs.
• Adds/updates automated tests.

[github-actions]

Test Results

   18 files  1 096 suites   10m 20s ⏱️
8 593 tests 8 561 ✅ 29 💤 3 ❌
8 605 runs  8 576 ✅ 29 💤 0 ❌

For more details on these failures, see this check.

Results for commit 213d2e6.

♻️ This comment has been updated with latest results.

[datadog-wireapp]

Datadog Report

Branch report: chore/review-sync-logging
Commit report: 0d683e5
Test service: wire-ios-mono

✅ 0 Failed, 1774 Passed, 26 Skipped, 1m 56.31s Total Time

[dmitrysimkin]

LGTM, left couple of minor questions

[netbe]

overall looks good, but I think some information should be removed from log message as it is contained in the attributes and we log attributes anyway

[samwyndham]

Removing myself as there are already 2 reviewers. Feel free to add me back

[netbe]

looks good