test: add SDK benchmarks e2e workflow

[giortzisg]

Summary

• Test PR to validate the reusable e2e benchmark workflow from getsentry/sdk-benchmarks
• Calls e2e.yml@feat/generic-e2e-workflow which auto-discovers Go apps (net-http, gin, echo) and runs benchmarks

Test plan

• Verify the benchmark workflow triggers on this PR
• Verify benchmark results are posted as a PR comment

Note: This is a test PR — do not merge.

🤖 Generated with Claude Code

[github-actions]

Semver Impact of This PR

⚪ None (no version bump detected)

📋 Changelog Preview

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Breaking Changes 🛠

• Add support for go 1.26 by giortzisg in #1193
  • bump minimum supported go version to 1.24

New Features ✨

• Log specific message for RequestEntityTooLarge by giortzisg in #1185

Bug Fixes 🐛

• Ensure correct signal delivery on multi-client setups by giortzisg in #1190

Internal Changes 🔧

Deps

• Bump golang.org/x/crypto to 0.48.0 by giortzisg in #1196
• Use go1.24.0 by giortzisg in #1195
• Bump github.com/gofiber/fiber/v2 from 2.52.9 to 2.52.11 in /fiber by dependabot in #1191
• Bump getsentry/craft from 2.19.0 to 2.20.1 by dependabot in #1187

Other

• Add omitzero and remove custom serialization by giortzisg in #1197
• Rename Telemetry Processor components by giortzisg in #1186

Other

• test: add SDK benchmarks e2e workflow by giortzisg in #1201

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[github-actions]

SDK Benchmark Results

App	SDK Version	Status	p95 Overhead	p99 Overhead
go/echo	0.42.0	✅ No regression	+5.07%	+6.03%
go/gin	0.42.0	❔ Inconclusive (not converged)	+4.74%	+5.94%
go/net-http	0.42.0	✅ No regression	+3.28%	+4.16%

go/echo — No regression

Current branch: 0.42.0 | Latest release: 0.42.0

Metric	Latest Release	Current Branch	Diff	p-value
p95	+3.79% [+2.62%, +4.97%]	+5.07% [+3.30%, +6.85%]	+1.28pp	0.0001
p99	+5.23% [+3.74%, +6.72%]	+6.03% [+4.35%, +7.72%]	+0.80pp	0.0000

Details

• Iterations used: 10
• Converged: yes
• RPS: N/A
• Duration: N/A

go/gin — Inconclusive (not converged)

Current branch: 0.42.0 | Latest release: 0.42.0

Metric	Latest Release	Current Branch	Diff	p-value
p95	+4.52% [+2.07%, +6.97%]	+4.74% [+0.42%, +9.06%]	+0.22pp	0.0350
p99	+6.40% [+3.70%, +9.09%]	+5.94% [+2.05%, +9.83%]	-0.46pp	0.0072

Details

• Iterations used: 10
• Converged: no
• RPS: N/A
• Duration: N/A

go/net-http — No regression

Current branch: 0.42.0 | Latest release: 0.42.0

Metric	Latest Release	Current Branch	Diff	p-value
p95	+4.26% [+2.70%, +5.81%]	+3.28% [+2.20%, +4.35%]	-0.98pp	0.0001
p99	+4.57% [+2.74%, +6.40%]	+4.16% [+0.44%, +7.88%]	-0.41pp	0.0321

Details

• Iterations used: 10
• Converged: yes
• RPS: N/A
• Duration: N/A