ci: fix pipeline (for good?)

.github/workflows/ci.yml

@@ -21,11 +21,16 @@ jobs:
     name: ${{ matrix.os }} @ Go ${{ matrix.go }}
     runs-on: ${{ matrix.os }}
     steps:
-      - name: Set up Go ${{ matrix.go }}
+      - name: Install Go ${{ matrix.go }}
         uses: actions/setup-go@v1
         with:
           go-version: ${{ matrix.go }}
 
+      - name: Set environment
+        run: |
+          echo "GOPATH=$(dirname $GITHUB_WORKSPACE)" >> $GITHUB_ENV
+          echo "$(dirname $GITHUB_WORKSPACE)/bin" >> $GITHUB_PATH
+
       - name: Checkout Code
         uses: actions/checkout@v2
         with: