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GH-34700: [Packaging][RPM] Use lz4-libs instead of lz4 on AlmaLinux 8+ (#34716)

### Rationale for this change

`liblz4.so.*` are included in `lz4-libs` on AlmaLinux 8+.

### What changes are included in this PR?

Use `lz4-libs` not `lz4` on AlmaLinux 8+.

### Are these changes tested?

Yes.

### Are there any user-facing changes?

Yes.
* Closes: #34700

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