chore(telemetry): configuration telemetry reporting

[P403n1x87]

We refactor the implementation of the telemetry configuration reporting to use new API exposed by the latest release of envier. We also implement a configuration class that automatically reports configuration telemetry after the environment variables have been parsed and validated.

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:

.riot/requirements/1215c62.txt                                          @DataDog/apm-python
.riot/requirements/132f882.txt                                          @DataDog/apm-python
.riot/requirements/1dcfbb2.txt                                          @DataDog/apm-python
.riot/requirements/bd5e098.txt                                          @DataDog/apm-python
ddtrace/settings/_core.py                                               @DataDog/apm-core-python
ddtrace/settings/peer_service.py                                        @DataDog/apm-core-python
hatch.toml                                                              @DataDog/python-guild
min_compatible_versions.csv                                             @DataDog/apm-core-python
pyproject.toml                                                          @DataDog/python-guild
riotfile.py                                                             @DataDog/apm-python
tests/telemetry/test_writer.py                                          @DataDog/apm-python
.riot/requirements/1e6bfcb.txt                                          @DataDog/apm-python
.riot/requirements/1f540f4.txt                                          @DataDog/apm-python
.riot/requirements/6498eb0.txt                                          @DataDog/apm-python
.riot/requirements/c23a971.txt                                          @DataDog/apm-python

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-01-08 15:41:19

Comparing candidate commit 74c150e in PR branch refactor/config-telemetry with baseline commit a225334 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 394 metrics, 2 unstable metrics.

[mabdinur]

If this change is backported to the 2.15 branch before 2.15.0 is released then a release note is not required.
Otherwise we need to document the fact that v2.15.0 relies on private attributes in a third party library (envier).

cc: @erikayasuda

[datadog-dd-trace-py-rkomorn]

Datadog Report

Branch report: refactor/config-telemetry
Commit report: 74c150e
Test service: dd-trace-py

✅ 0 Failed, 87 Passed, 1468 Skipped, 4m 11.97s Total duration (35m 21.08s time saved)