chore: update changelog for version 3.3.0

[emmettbutler]

• update changelog for version 3.3.0

[github-actions]

CODEOWNERS have been resolved as:

CHANGELOG.md                                                            @DataDog/apm-python

[github-actions]

Bootstrap import analysis

Comparison of import times between this PR and main.

Summary

The average import time in this PR is: 225 ± 2 ms.

The average import time in main is: 227 ± 3 ms.

The import time difference between this PR and main is: -2.0 ± 0.1 ms.

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 1.983 ms (0.88%)

ddtrace.bootstrap.sitecustomize 1.329 ms (0.59%)

ddtrace.bootstrap.preload 1.329 ms (0.59%)

ddtrace.internal.products 1.329 ms (0.59%)

ddtrace.internal.remoteconfig.client 0.637 ms (0.28%)

ddtrace 0.654 ms (0.29%)

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-03-28 16:32:03

Comparing candidate commit 49f54ae in PR branch release.script/changelog-update-3.3.0 with baseline commit 00b6b37 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 498 metrics, 2 unstable metrics.