ci: fix github action for release and documentation

Author: mcuadros

.github/workflows/gh-pages.yml

@@ -16,9 +16,9 @@ jobs:
         path: ${{env.WORKING_PATH}}
 
     - name: Install Go
-      uses: actions/setup-go@v2-beta
+      uses: actions/setup-go@v2
       with:
-        go-version: 1.14.x
+        go-version: 1.16.x
 
     - name: Setup Hugo
       uses: peaceiris/actions-hugo@v2

.github/workflows/release.yml

@@ -17,7 +17,7 @@ jobs:
 
     - name: Set GO_LDFLAGS
       run: |
-        echo ::set-env name=GO_LDFLAGS::$(make goldflags)
+        echo "GO_LDFLAGS=$(make goldflags)" >> $GITHUB_ENV
 
     - name: Release binaries
       uses: mcuadros/go-release-action@master