fix: add --allow-downgrades to arm64 apt-get install to fix glib dev dep version conflict

Author: Copilot

.github/workflows/tauri-build.yml

@@ -79,7 +79,7 @@ jobs:
 
           sudo apt-get update
 
-          sudo apt-get install -y \
+          sudo apt-get install -y --allow-downgrades \
             gcc-aarch64-linux-gnu \
             g++-aarch64-linux-gnu \
             pkg-config \