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GH-36003: [Packaging][RPM] RPM jobs have a duplicated artifact pattern (#36004)

### Rationale for this change

It's duplicated.

### What changes are included in this PR?

Remove duplicated.

### Are these changes tested?

Yes.

### Are there any user-facing changes?

No.
* Closes: #36003

Authored-by: Sutou Kouhei <kou@clear-code.com>
Signed-off-by: Jacob Wujciak-Jens <jacob@wujciak.de>