fix(go-runner): ensure excludes dont filter files

[not-matthias]

Lots of code added in this PR, but most of it is just forks of packages used by opentelemetry. I recommend going through for each commit.

Changes in this PR:

• Turns out that the exclude filters are just checking with .contains which also deletes any file that includes the exclude (e.g. target.go): https://github.com/woelper/dircpy/blob/645889b819dc78deade6d7ef16aba0420b8e5d08/src/lib.rs#L216-L223
• Forked stdr and logr
• Handle the ForTest field for external tests, which includes additional test files we have to rename (and added a new test case to validate that it works)
• Forked testify (we already supported asserts, but it didn't work with the suite package)
• Shard the integration tests to avoid running out of disk space

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Validated it on the opentelemetry-go project; https://github.com/AvalancheHQ/opentelemetry-go/actions/runs/20787115007 / https://codspeed.io/AvalancheHQ/opentelemetry-go/runs/695e81a4cc5b8dc1af806e9b (fails on CodSpeed because it has 1k benchmarks, but the run went through without any errors)

[Copilot]

Pull request overview

This PR fixes a bug where files containing excluded directory names (like target.go or node_modules.go) were incorrectly being filtered out during directory copying. The root cause was the dircpy library's use of .contains() for matching exclusion patterns, which led to false positives. The fix removes the hardcoded exclusion list, allowing all files to be copied correctly.

Key Changes:

• Removed hardcoded excludes ["node_modules", "target"] from the copy_dir_recursively function
• Added comprehensive test project example-with-excluded-names with files named target.go and node_modules.go to validate the fix
• Added integration and discovery test cases for the new test project

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
go-runner/src/utils.rs	Removed the hardcoded exclusion patterns that were causing false positives
go-runner/testdata/projects/example-with-excluded-names/main_test.go	Added benchmark test that depends on code in files with problematic names
go-runner/testdata/projects/example-with-excluded-names/main.go	Added main source file that imports from internal tools package
go-runner/testdata/projects/example-with-excluded-names/internal/tools/target_impl.go	Implementation file containing functions used by target.go and node_modules.go
go-runner/testdata/projects/example-with-excluded-names/internal/tools/target.go	Test file with "target" in filename to validate it's no longer excluded
go-runner/testdata/projects/example-with-excluded-names/internal/tools/node_modules.go	Test file with "node_modules" in filename to validate it's no longer excluded
go-runner/testdata/projects/example-with-excluded-names/internal/tools/instrumentation.go	Integration point that uses functions from both target and node_modules files
go-runner/testdata/projects/example-with-excluded-names/go.mod	Go module definition for test project
go-runner/src/snapshots/codspeed_go_runner__integration_tests__assert_results_snapshots@example-with-excluded-names.snap	Expected benchmark results snapshot
go-runner/src/integration_tests.rs	Added test case for new example project
go-runner/src/builder/snapshots/codspeed_go_runner__builder__discovery__tests__discover_benchmarks@example-with-excluded-names.snap	Expected discovery results snapshot
go-runner/src/builder/discovery.rs	Added test case for benchmark discovery validation

The changes are well-structured and provide comprehensive test coverage for the bug fix. No issues were identified during the review.

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[codspeed-hq]

Merging this PR will improve performance by 22.14%

Summary

⚡ 1 improved benchmark
✅ 48 untouched benchmarks
🆕 3 new benchmarks

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
⚡	bench_collect_results[10000000, 25]	6.1 s	5 s	+22.14%
🆕	BenchmarkStdrWithName	N/A	5.4 µs	N/A
🆕	BenchmarkStdr	N/A	11.4 µs	N/A
🆕	BenchmarkLogrTestr	N/A	28 µs	N/A

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_{Comparing cod-1829-cannot-compile-certain-internal-packages (5a11ae4) with main (4df4d46)}

[GuillaumeLagrange]

@not-matthias this should be closed or rebased right ? Feel free to re-request review

[not-matthias]

@not-matthias this should be closed or rebased right ? Feel free to re-request review

Yep, we don't need this PR anymore as it's been superseded by #49