chore: add opentofu action

.github/workflows/infra-build.yml

@@ -19,12 +19,6 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Setup Opentofu CLI
-        run: |
-          curl -L https://github.com/opentofu/opentofu/releases/latest/download/opentofu-linux-amd64 -o /usr/local/bin/tofu
-          chmod +x /usr/local/bin/tofu
-          tofu version
-
       - name: Generate Dynamic Vars (Secrets)
         run: |
           cat <<EOF > terraform.auto.tfvars
@@ -37,6 +31,9 @@ jobs:
           passphrase = "${{ secrets.SSH_PASSPHRASE }}"
           EOF
       
+      - name: Setup Opentofu
+        uses: opentofu/setup-opentofu@v1
+
       - name: Opentofu Init
         run: tofu init