chore(deps): update hashicorp/consul docker tag to v1.21.2

Author: renovate[bot]

.github/workflows/go.yml

@@ -20,7 +20,7 @@ jobs:
         ports:
             - "2379:2379"
       consul-server:
-        image: hashicorp/consul:1.10.0
+        image: hashicorp/consul:1.21.2
         ports:
           - "8500:8500"
           - "8600:8600/tcp"