👷 [PANA-8578] Update schema to support session replay string roles

[sethfowler-datadog]

Motivation

The rum-events-schema has been updated to support two new session-replay-related features:

• Strings in session replay records can now be tagged with "roles". This metadata allows us to perform transformations on recorded sessions on the backend that would be difficult to support today, including after-the-fact privacy masking.
• The relatively new "Change" data format previously didn't support incremental form input events; we fell back to the V1 format for those. A change format representation of form input events has been added. This allows the strings which appear in those events to be tagged with string roles.

Because these schema changes add new variants to existing discriminated unions, they don't type check against main today. We need to both update the rum-events-schema dependency and fix the resulting type errors.

Changes

• The rum-events-format dependency has been updated to the latest commit.
• The derived types have been regenerated.
• The definitions in sessionReplayConstants.ts have been updated to match the shared versions in rum-events-format.
• A few call sites that directly interact with the new format changes have been updated to support them in a trivial way, fixing the type errors. Full implementation will come in future PRs.

[bcaudan]

LGTM