Add a flag and an environment variable to skip bundling Go packages

[5ouma]

Installing Go packages was added in #20798, but it can't be opted out of.
This is a similar idea to --no-vscode.
ref: #20645 (comment)

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[Copilot]

Pull Request Overview

This PR adds a new --no-go flag to the brew bundle command, allowing users to exclude Go packages when running dump. This mirrors the existing --no-vscode flag functionality.

• Adds --no-go flag with environment variable support (HOMEBREW_BUNDLE_DUMP_NO_GO)
• Implements mutual exclusivity between --go/--no-go and --all/--no-go
• Updates completion scripts and documentation to reflect the new flag

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Library/Homebrew/cmd/bundle.rb	Adds --no-go switch definition, conflict rules, and conditional logic for the dump command
Library/Homebrew/sorbet/rbi/dsl/homebrew/cmd/bundle.rbi	Adds type signature for the no_go? method
manpages/brew.1	Adds manpage entry for the --no-go flag
docs/Manpage.md	Adds documentation for the --no-go flag
completions/zsh/_brew	Updates zsh completions to include --no-go and its mutual exclusivity rules
completions/fish/brew.fish	Adds fish shell completion for --no-go
completions/bash/brew	Adds bash completion for --no-go

Files not reviewed (1)

• Library/Homebrew/sorbet/rbi/dsl/homebrew/cmd/bundle.rbi: Language not supported

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[Rylan12]

This looks great, thanks @5ouma!

I'll let someone who's touched brew bundle more recently take a look tomorrow before merging just in case

[MikeMcQuaid]

Thanks so much for your contribution! Without people like you submitting PRs we couldn't run this project. You rock, @5ouma!