Merge pull request #19 from anhnmt/v2

Update github workflows

.github/workflows/release.yml

@@ -4,6 +4,7 @@ on:
   push:
     tags:
       - "v*"
+  workflow_dispatch:
 
 permissions:
   contents: write
@@ -20,9 +21,10 @@ jobs:
 
       - name: Set up Go
         uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
 
       - name: Login to dockerhub registry
-        if: startsWith(github.ref, 'refs/tags/v')
         uses: docker/login-action@v3
         with:
           username: ${{ github.repository_owner }}