fix(internal): fix inconsistencies with tracer flare implementation

[brettlangdon]

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/internal/flare/flare.py                                         @DataDog/apm-core-python
ddtrace/internal/flare/handler.py                                       @DataDog/apm-core-python
ddtrace/internal/remoteconfig/products/client.py                        @DataDog/remote-config @DataDog/apm-core-python

[github-actions]

Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 231 ± 2 ms.

The average import time from base is: 233 ± 2 ms.

The import time difference between this PR and base is: -2.02 ± 0.08 ms.

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 1.976 ms (0.86%)

ddtrace.bootstrap.sitecustomize 1.303 ms (0.56%)

ddtrace.bootstrap.preload 1.303 ms (0.56%)

ddtrace.internal.remoteconfig.client 0.647 ms (0.28%)

ddtrace 0.673 ms (0.29%)

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-05-15 09:26:55

Comparing candidate commit a8ed143 in PR branch brettlangdon/fix.flares with baseline commit ecc84b1 in branch main.

Found 0 performance improvements and 4 performance regressions! Performance is the same for 519 metrics, 5 unstable metrics.

scenario:iast_aspects-format_map_aspect

• 🟥 execution_time [+447.548ns; +574.960ns] or [+14.018%; +18.009%]

scenario:iast_aspects-ljust_aspect

• 🟥 execution_time [+1.336µs; +1.451µs] or [+10.371%; +11.258%]

scenario:iast_aspects-swapcase_aspect

• 🟥 execution_time [+193.530ns; +229.166ns] or [+7.827%; +9.269%]

scenario:iast_aspects-upper_aspect

• 🟥 execution_time [+228.311ns; +275.896ns] or [+10.081%; +12.182%]