chore(ci): fix docker login (#396)

Author: aajtodd

.github/workflows/continuous-integration.yml

@@ -21,21 +21,20 @@ jobs:
     steps:
     - name: Checkout sources
       uses: actions/checkout@v2
+    - uses: actions/cache@v2
+      with:
+        path: |
+          ~/.gradle/caches
+          ~/.gradle/wrapper
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*') }}
+        restore-keys: |
+          ${{ runner.os }}-gradle-
     - name: Build and Test ${{ env.PACKAGE_NAME }}
-      env:
-        CI_USER: ${{ secrets.CI_USER}}
-        CI_ACCESS_TOKEN: ${{ secrets.CI_ACCESS_TOKEN }}
       run: |
-        echo "${{ secrets.GITHUB_TOKEN }}" | docker login docker.pkg.github.com -u awslabs --password-stdin
-        export DOCKER_IMAGE=docker.pkg.github.com/awslabs/aws-crt-builder/aws-crt-ubuntu-16-x64:${{ env.BUILDER_VERSION }}
-        docker pull $DOCKER_IMAGE
-        docker run --mount type=bind,source=$(pwd),target=/root/${{ env.PACKAGE_NAME }} \
-          --env GITHUB_REF \
-          --env GITHUB_HEAD_REF \
-          --env CI_USER \
-          --env CI_ACCESS_TOKEN \
-          --env GIT_ASKPASS=/root/${{ env.PACKAGE_NAME }}/.github/scripts/git-ci-askpass.sh \
-          $DOCKER_IMAGE build -p ${{ env.PACKAGE_NAME }} --build-dir=/root/${{ env.PACKAGE_NAME }}
+        python3 -c "from urllib.request import urlretrieve; urlretrieve('${{ env.BUILDER_HOST }}/${{ env.BUILDER_SOURCE }}/${{ env.BUILDER_VERSION }}/builder.pyz?run=${{ env.RUN }}', 'builder.pyz')"
+        chmod a+x builder.pyz
+        echo "kotlinWarningsAsErrors=true" >> $GITHUB_WORKSPACE/local.properties
+        ./builder.pyz build -p ${{ env.PACKAGE_NAME }}
 
   macos-compat:
     runs-on: macos-latest