Add x-ui.service.arch file (#3650)

* Add a service file for Arch-based OSs

* Update release.yml with arch service file

* Update x-ui.service.arch

.github/workflows/release.yml

@@ -18,6 +18,7 @@ on:
       - 'go.mod'
       - 'go.sum'
       - 'x-ui.service.debian'
+      - 'x-ui.service.arch'
       - 'x-ui.service.rhel'
 
 jobs:
@@ -80,6 +81,7 @@ jobs:
           mkdir x-ui
           cp xui-release x-ui/
           cp x-ui.service.debian x-ui/
+          cp x-ui.service.arch x-ui/
           cp x-ui.service.rhel x-ui/
           cp x-ui.sh x-ui/
           mv x-ui/xui-release x-ui/x-ui
@@ -223,4 +225,4 @@ jobs:
           file: x-ui-windows-amd64.zip
           asset_name: x-ui-windows-amd64.zip
           overwrite: true
-          prerelease: true
+          prerelease: true