[Bugfix] remove quotes from tag regex

.github/workflows/terraform.yml

@@ -75,7 +75,7 @@ jobs:
       - name: Check tag
         id: check-tag
         run: |
-          if [[ ${{ github.ref }} =~ "^refs\/tags\/v[0-9]+\.[0-9]+\.[0-9]+$" ]]; then echo ::set-output name=environment::production
+          if [[ ${{ github.ref }} =~ ^refs\/tags\/v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then echo ::set-output name=environment::production
           elif [[ ${{ github.ref }} == 'refs/heads/main' ]]; then echo ::set-output name=environment::staging
           else echo ::set-output name=environment::unknown
           fi