Fix Sorbet linting errors in snctl formula

[Copilot]

The snctl v1.6.0 formula update introduced Sorbet linting violations that caused build failures.

Changes:

• Refactored formula to use idiomatic on_intel/on_arm blocks instead of if Hardware::CPU conditionals
• Consolidated four duplicate def install methods (defined inside conditional blocks) into a single method outside blocks

Before:

on_macos do
  if Hardware::CPU.intel?
    url "..."
    def install
      bin.install "snctl"
    end
  end
end

After:

on_macos do
  on_intel do
    url "..."
  end
end

def install
  bin.install "snctl"
end

This resolves all 4 Sorbet/BlockMethodDefinition offenses flagged by brew style.

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[freeznet]

@copilot the ci get passed, and now lets revert the chages of ‎.github/workflows/ci.yml‎ to make this PR only fix the ‎Formula/snctl.rb‎ issue

[Copilot]

@copilot the ci get passed, and now lets revert the chages of ‎.github/workflows/ci.yml‎ to make this PR only fix the ‎Formula/snctl.rb‎ issue

Reverted in ce1134e. The PR now only contains the snctl formula fix, with CI workflow changes removed.