arrow

GH-45157: [CI][Packaging] Remove explicit pins of gemfury version in dev/tasks/macros.jinja (#45158)

### Rationale for this change

This should fix a lot of CI jobs. See https://github.com/apache/arrow/issues/45157.

### What changes are included in this PR?

Updated dev/tasks/macros.jinja to remove explicit version pin on the gemfury gem version.

### Are these changes tested?

Testing here.

### Are there any user-facing changes?

No.
* GitHub Issue: #45157

Authored-by: Bryce Mecum <petridish@gmail.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>