fix(.github/workflows): fix smoke-tests to avoid breaking changes in v0.70.x

[darccio]

What does this PR do?

fix go get -u failure first seen here

Motivation

https://app.datadoghq.com/incidents/43109 & #3972

Reviewer's Checklist

• Changed code has unit tests for its functionality at or near 100% coverage.
• System-Tests covering this feature have been added and enabled with the va.b.c-dev version tag.
• 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.
• New code is free of linting errors. You can check this by running ./scripts/lint.sh locally.
• Add an appropriate team label so this PR gets put in the right place for the release notes.
• Non-trivial go.mod changes, e.g. adding new modules, are reviewed by @DataDog/dd-trace-go-guild.

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[pr-commenter]

Benchmarks

Benchmark execution time: 2025-09-16 16:01:46

Comparing candidate commit bee2c44 in PR branch dario.castane/quick-fix-incident-43109 with baseline commit ca6a4cf in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 24 metrics, 0 unstable metrics.

[jackgopack4]

would we need to add some commands to "go get" these packages in the PACKAGES" directories? (i.e. ./internal/... ./ddtrace/... ./profiler/... ./appsec/... ./instrumentation/...`)

[darccio]

would we need to add some commands to "go get" these packages in the PACKAGES" directories? (i.e. ./internal/... ./ddtrace/... ./profiler/... ./appsec/... ./instrumentation/...`)

We don't need to, as these packages are part of the root module. The other nested modules are updated when running this command:

for d in `find . -iname go.mod | xargs -n1 dirname`; do pushd $d; go mod tidy; popd; done;

[darccio]

/merge

[dd-devflow-routing-codex]

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2025-09-16 16:26:56 UTC ℹ️ Start processing command /merge

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2025-09-16 16:43:37 UTC ℹ️ MergeQueue: merge request added to the queue

The expected merge time in main is approximately 15m (p90).

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2025-09-16 16:58:45 UTC ℹ️ MergeQueue: This merge request was merged