chore(er): ensure max frame per trace (#12791)

[tylfin]

We make sure that the max frame settings is honoured for a whole trace instead of a single span to avoid capturing too many snapshots.

(cherry picked from commit 560b7a6)
(cherry picked from commit bb68a4f)

Checklist

• PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[github-actions]

CODEOWNERS have been resolved as:

ddtrace/debugging/_exception/replay.py                                  @DataDog/debugger-python
ddtrace/settings/exception_replay.py                                    @DataDog/apm-core-python
tests/debugging/exception/test_replay.py                                @DataDog/debugger-python
tests/telemetry/test_writer.py                                          @DataDog/apm-python

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-06-04 13:36:12

Comparing candidate commit f06ab9e in PR branch backport-12791-to-2.21 with baseline commit fb2d052 in branch 2.21.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 282 metrics, 2 unstable metrics.