Added github.workspace to build workflow command

.gitea/workflows/build.yml

@@ -32,9 +32,8 @@ jobs:
 
       - name: Build
         run: |
-          docker buildx build --output type=local,dest=. \
+          docker run --rm --name build-container -v ${{ github.workspace }}:/workspace/monero-gui \
-          monero:build-env-linux --build-arg THREADS=3 --file Dockerfile.linux \
+          -w /workspace/monero-gui monero:build-env-linux sh -c 'make release-static -j3'
-          sh -c 'make release-static -j3'
 
       - name: sha256sum
         run: shasum -a256 /workspace/Bill/monero-gui/build/release/bin/monero-wallet-gui