feat: Add ARM64 (aarch64) support to AUR package

- Update PKGBUILD to support both x86_64 and aarch64 architectures
- Use architecture-specific sources and checksums
- Update AUR workflow to download and checksum both tarballs
- Add smart wait logic for both release assets (max 10 minutes)
- Homologize workflow naming for consistency
- Package function now detects architecture and uses correct tarball

AUR users on ARM64 devices (Raspberry Pi, etc.) can now install qbz-bin.

.github/workflows/release-linux-aarch64.yml

@@ -11,7 +11,7 @@ on:
 
 jobs:
   build-linux-aarch64:
-    name: Build Linux aarch64
+    name: Build Linux ARM64
     runs-on: ubuntu-24.04-arm
     continue-on-error: true
     permissions: