fix: quote correction

Author: samrose

.github/workflows/ami-release-nix.yml

@@ -67,7 +67,7 @@ jobs:
 
       - name: Generate common-nix.vars.pkr.hcl
         run: |
-          PG_VERSION=$(sudo nix run nixpkgs#yq --  '.postgres_release["postgres${{ matrix.postgres_version }}"]' ansible/vars.yml)
+          PG_VERSION=$(sudo nix run nixpkgs#yq --  '.postgres_release["postgres'${{ matrix.postgres_version }}'"]' ansible/vars.yml)
           echo "postgres-version = \"$PG_VERSION\"" > common-nix.vars.pkr.hcl
 
       - name: Build AMI stage 1