Add span component to the telemetry metrics

[wantsui]

There's no way to tell which integrations are in use, so this PR attempts to fix that.

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/_trace/processor/__init__.py                                    @DataDog/apm-sdk-api-python
tests/telemetry/test_telemetry_metrics_e2e.py                           @DataDog/apm-python

[datadog-dd-trace-py-rkomorn]

Datadog Report

Branch report: wantsui/add-component-telemetry
Commit report: d2ed9d5
Test service: dd-trace-py

✅ 0 Failed, 130 Passed, 1184 Skipped, 1m 43.77s Total Time

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-02-19 22:32:12

Comparing candidate commit d2ed9d5 in PR branch wantsui/add-component-telemetry with baseline commit 2f84452 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 384 metrics, 0 unstable metrics.

[wantsui]

TODO: Use: span._meta and use the component constants

[wantsui]

replace with span._meta

[wantsui]

try playing without batching in _queue_span_count_metrics