ci: add linux arm64 build (#935)

.github/workflows/test.yml

@@ -63,7 +63,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ windows-latest, macos-latest, ubuntu-22.04 ]
+        os: [ windows-latest, macos-latest, ubuntu-22.04, ubuntu-22.04-arm ]
     needs: [ test ]
     steps:
       - uses: actions/checkout@v3
@@ -73,6 +73,7 @@ jobs:
       - uses: subosito/flutter-action@v2
         with:
           flutter-version: ${{ env.FLUTTER_VERSION }}
+          channel: master
       - if: runner.os == 'Windows'
         run: |
           go build -tags nosqlite -ldflags="-w -s" -buildmode=c-shared -o ui/flutter/windows/libgopeed.dll github.com/GopeedLab/gopeed/bind/desktop
@@ -164,4 +165,4 @@ jobs:
           cd ../../
           rm -rf cmd/web/dist
           cp -r ui/flutter/build/web cmd/web/dist
-          docker build -t gopeed .
+          docker build -t gopeed .