ci: do not install goimports and asmfmt

[ivokub]

Description

We now use them as go tools and the version is pinned in go.mod. No need to install the running @latest in CI job.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How has this been tested?

Please describe the tests that you ran or implemented to verify your changes. Provide instructions so we can reproduce.

• Test A
• Test B

How has this been benchmarked?

Please describe the benchmarks that you ran to verify your changes.

• Benchmark A, on Macbook pro M1, 32GB RAM
• Benchmark B, on x86 Intel xxx, 16GB RAM

Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I did not modify files generated from templates
• golangci-lint does not output errors locally
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

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Note

Low Risk
Workflow-only change that drops duplicate tool installs; formatting checks still use pinned go tool entries from go.mod.

Overview
Removes the test job step that ran go install for goimports and asmfmt at @latest in .github/workflows/pr.yml.

Static checks already invoke go tool goimports, and both tools are pinned via go.mod, so the extra install was redundant and could drift from the repo’s pinned versions.

^{Reviewed by Cursor Bugbot for commit 6ebfbbc. Bugbot is set up for automated code reviews on this repo. Configure here.}