ci: drop the download proxy from the base-arm64 job

[viceice]

Changes

Drops the download proxy from the base-arm64 job. Its test-base bake downloads no tools, so the proxy only ever served its own startup check (1 request, 0 hits in #7670's last run). distro and lang keep it.

Context

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• This closes an existing Issue, Closes: #
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Follow-up to #7670.

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Summary by CodeRabbit

• Chores
  • The ARM64 base build no longer downloads the proxy or reports proxy errors and cache statistics. Initialization and base tests remain unchanged.

[qodo-code-review]

PR Summary by Qodo

Remove unused download proxy from base-arm64 CI job

⚙️ Configuration changes 🕐 Less than 10 minutes

AI Description

• Remove proxy startup from base-arm64, whose test-base bake downloads no tools.
• Remove proxy-specific error and cache-stat steps from that job; distro and lang retain theirs.

Diagram

graph TD
  ARM["base-arm64 job"] --> BASE["test-base bake"]
  OTHER["distro and lang"] --> PROXY["Download proxy"] --> TESTS["Tool tests"] --> DIAG["Proxy diagnostics"]

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High-Level Assessment

Remove the proxy only from the job that does not use it. Keeping it for consistency would preserve startup overhead and a proxy-specific failure point without benefiting test-base.

Files changed (1) +0 / -11

Other (1) +0 / -11

build.ymlDrop unused proxy steps from base-arm64 +0/-11

Drop unused proxy steps from base-arm64

• Removes download-proxy startup, failure diagnostics, and cache statistics from 'base-arm64'. Its 'test-base' bake remains unchanged, as do the proxy steps in 'distro' and 'lang'.

.github/workflows/build.yml

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Repository: containerbase/coderabbit/.coderabbit.yaml
• Review profile: CHILL
• Plan: Advanced
• Run ID: 0170fdcc-c45a-446d-811b-4c4f1fdd8224

📥 Commits

Reviewing files that changed from the base of the PR and between 263539b and 2dc12e6.

📒 Files selected for processing (1)

• .github/workflows/build.yml

💤 Files with no reviewable changes (1)

• .github/workflows/build.yml

Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review.

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📝 Walkthrough

Walkthrough

The base-arm64 job no longer downloads the proxy or runs proxy error and cache-stat reporting steps. Its initialization and test-base step remain.

Changes

ARM64 build workflow

Layer / File(s)	Summary
Remove proxy workflow steps .github/workflows/build.yml	The base-arm64 job skips proxy download and removes proxy error and cache-stat reporting steps.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~4 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to 2dc12

The base-arm64 job can run without the removed download proxy; the change is ready for normal checks and merge.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: removing the download proxy from the base-arm64 CI job.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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