fix github workflow use latest env method

Author: CMGS

.github/workflows/goreleaser.yml

@@ -16,12 +16,12 @@ jobs:
 
       - name: Set up environment variables
         run: |
-          echo "::set-env name=VERSION::$(git describe --tags $(git rev-list --tags --max-count=1))"
+          echo "VERSION=$(git describe --tags $(git rev-list --tags --max-count=1))" >> $GITHUB_ENV
 
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.14
+          go-version: 1.15
 
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v2