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GH-45447: [CI][GLib] Use `meson format` for Meson configuration files (#45448)



### Rationale for this change

Meson introduced its own formatting tool back in release 1.5.0. This helps enforce consistency in the configuration files and reduce unnecessary diffs

### What changes are included in this PR?

Added a pre-commit hook for Meson format and ran it against Meson files currently in the repo

### Are these changes tested?

N/A 

### Are there any user-facing changes?

No

* GitHub Issue: #45447

Authored-by: Will Ayd <william.ayd@icloud.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>