Add dd-trace-go macrobenchmark to CI pipeline

[igoragoli]

What does this PR do?

Introduces macrobenchmarks run by the Benchmarking Platform to dd-trace-go's CI pipeline.

Please read the following PR in the Benchmarking Platform repo, where all the information related to the construction and testing of the macrobenchmarks can be found: https://github.com/DataDog/benchmarking-platform/pull/33. This PR only includes these macrobenchmarks in dd-trace-go's CI pipeline.

Testing of the CI pipeline

CI jobs were run with the igoragoli/testing/add-go-macrobenchmark branch:

• Testing CI pipeline
• Measurements on the Go Macrobenchmark Dashboard

Motivation

Reviewer's Checklist

• Changed code has unit tests for its functionality at or near 100% coverage.
• There is a benchmark for any new code, or changes to existing code.
• If this interacts with the agent in a new way, a system test has been added.

For Datadog employees:

• If this PR touches code that handles credentials of any kind, such as Datadog API keys, I've requested a review from @DataDog/security-design-and-guidance.
• This PR doesn't touch any of that.

Unsure? Have a question? Request a review!

[pr-commenter]

Benchmarks

Benchmark execution time: 2023-10-25 13:55:37

Comparing candidate commit 92ad12a in PR branch igoragoli/add-go-macrobenchmark with baseline commit 1dd3dd4 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 39 metrics, 2 unstable metrics.