ci: remove wrongly backported pygoat in docker compose from 2.8

[juanjux]

Description

9117 incorrectly added pygoat to the docker-compose.yml file, which was not merged in the 2.8 branch. This fixes it.

Checklist

• [X] Change(s) are motivated and described in the PR description
• [X] Testing strategy is described if automated tests are not included in the PR
• [X] Risks are described (performance impact, potential for breakage, maintainability)
• [X] Change is maintainable (easy to change, telemetry, documentation)
• [X] Library release note guidelines are followed or label changelog/no-changelog is set
• [X] Documentation is included (in-code, generated user docs, public corp docs)
• [X] Backport labels are set (if applicable)
• [X] If this PR changes the public interface, I've notified @DataDog/apm-tees.

Reviewer Checklist

• [x] Title is accurate
• [x] All changes are related to the pull request's stated goal
• [x] Description motivates each change
• [x] Avoids breaking API changes
• [x] Testing strategy adequately addresses listed risks
• [x] Change is maintainable (easy to change, telemetry, documentation)
• [x] Release note makes sense to a user of the library
• [x] Author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• [x] Backport labels are set in a manner that is consistent with the release branch maintenance policy

[datadog-dd-trace-py-rkomorn[bot]]

Datadog Report

Branch report: juanjux/fix-wrong-backport-28 Commit report: e0f1ccb Test service: dd-trace-py

:white_check_mark: 0 Failed, 169151 Passed, 3249 Skipped, 11h 35m 14.01s Total duration (1h 7m 41.57s time saved)

[pr-commenter[bot]]

Benchmarks

Benchmark execution time: 2024-06-24 17:18:47

Comparing candidate commit e0f1ccba31a0c5e4ad92f9740a463c3baa19f11a in PR branch juanjux/fix-wrong-backport-28 with baseline commit f4419f1b4289e3f3159537cf346e911c7210daab in branch 2.8.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 185 metrics, 9 unstable metrics.