fix github workflows CI (#28)

* switch github CI to docker

* empty commit to trigger CI

.github/workflows/builder.yml

@@ -8,27 +8,14 @@ on:
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
+    container: devkitpro/devkita64_devkitarm
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Install devkitpro
-      run: |
-        wget https://github.com/devkitPro/pacman/releases/latest/download/devkitpro-pacman.amd64.deb
-        sudo dpkg -i devkitpro-pacman.amd64.deb
-        sudo dkp-pacman -S switch-dev --noconfirm
-        sudo dkp-pacman -S devkitARM --noconfirm
+    - uses: actions/checkout@v1
         
     - name: Build TegraExplorer
-      run: |
-        echo #     SETTING PATH       #
-        export DEVKITPRO=/opt/devkitpro
-        export DEVKITARM=${DEVKITPRO}/devkitARM
-        export DEVKITPPC=${DEVKITPRO}/devkitPPC
-        export PATH=${DEVKITPRO}/tools/bin:$PATH
-        echo #          MAKE          #
-        make -j$(nproc)
+      run: make -j$(nproc)
         
     - uses: actions/upload-artifact@master
       with: