Merge release/1.12.0 to develop

[maxep]

What and why?

Counterpart of #1000 for develop.

Changelog

• RUMM-2508 Fix manual User Action dropped if a new view start #997
• RUMM-2381 Add internal proxy API for customising app version #973
• Add public visibility to Internal Proxy methods. #964
• RUMM-2077 Vitals Frequency Configuration #876
• RUMM-2197 Improve device and os info in RUM #888
• RUMM-2173 Add log level threshold option #867
• Can't compile for SwiftUI Previews #949
• RUMM-2341 Expose server date provider interface #950

I've combined beta/rc/release in CHANGELOG for more clarity.

Review checklist

• Feature or bugfix MUST have appropriate tests (unit, integration)
• Make sure each commit and the PR mention the Issue number or JIRA reference
• Add CHANGELOG entry for user facing changes

Custom CI job configuration (optional)

• Run unit tests
• Run integration tests
• Run smoke tests

[datadog-datadog-prod-us1]

Datadog Report

Branch report: release/1.12.0
Commit report: c7f95c6

✅ dd-sdk-ios 0 Failed, 0 New Flaky, 1922 Passed, 0 Skipped, 20m13.26s Wall Time