chore(lib-injection): dedupe files in OCI image

[brettlangdon]

This PR introduces using rdfind to dedupe all the files in the OCI image and k8s lib-injection images to reduce the overall size.

https://datadoghq.atlassian.net/browse/INPLAT-442

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:

releasenotes/notes/chore-reduce-oci-image-ce45f1868ee14415.yaml         @DataDog/apm-python
.gitlab/prepare-oci-package.sh                                          @DataDog/python-guild @DataDog/apm-core-python

[datadog-dd-trace-py-rkomorn]

Datadog Report

Branch report: brettlangdon/oci.dedupe
Commit report: 5840592
Test service: dd-trace-py

✅ 0 Failed, 130 Passed, 1468 Skipped, 4m 31.34s Total duration (35m 34.74s time saved)

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-01-15 18:59:27

Comparing candidate commit 5840592 in PR branch brettlangdon/oci.dedupe with baseline commit 21d50d4 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 378 metrics, 2 unstable metrics.

[erikayasuda]

🎉

[stanistan]

❤️