arrow

GH-44415: [Release][Ruby] Remove pins from glib section of release verification script (#44407)

### Rationale for this change

We can remove these pins now that https://github.com/conda-forge/glib-feedstock/issues/191 has been closed. I've tested on my own crossbow and will test here momentarily. This effectively reverts https://github.com/apache/arrow/pull/44270 and https://github.com/apache/arrow/issues/44268.

### What changes are included in this PR?

Tweaks to release release verification script, specifically removing recently-added pins.

### Are these changes tested?

Yes: https://github.com/amoeba/crossbow/actions/runs/11335070956/job/31522511285.

### Are there any user-facing changes?

No.

Closes #44415.
* GitHub Issue: #44415

Authored-by: Bryce Mecum <petridish@gmail.com>
Signed-off-by: Bryce Mecum <petridish@gmail.com>