Remove arm64 build for linux

Author: eritpchy

.github/workflows/build-docker.yml

@@ -30,7 +30,6 @@ env:
 jobs:
   buildx:
     runs-on: ubuntu-latest
-    timeout-minutes: 180
     steps:
       -
         name: Checkout
@@ -79,7 +78,7 @@ jobs:
         with:
           context: .
           file: ./Dockerfile
-          platforms: linux/amd64,linux/arm64
+          platforms: linux/amd64
           push: ${{ github.event_name != 'pull_request' }}
           tags: |
             eritpchy/aliyundrive-webdav:latest