NOISSUE - Update env vars for events store (#91)

- Rename env vars `MG_ES_STORE_TYPE` to `MG_ES_TYPE`
- Rename env var `MG_ES_STORE_URL` to `MG_ES_URL`
- User one env variables `MG_ES_URL` instead of every service having their own env variables
- Config default env var for `MG_ES_URL` at code level to be `nats://localhost:4222` instead of `redis://localhost:6379/0`

Signed-off-by: Rodney Osodo <28790446+rodneyosodo@users.noreply.github.com>

scripts/ci.sh

@@ -72,7 +72,7 @@ setup_mg() {
     echo "Compile check for rabbitmq..."
     MG_MESSAGE_BROKER_TYPE=rabbitmq make http
     echo "Compile check for redis..."
-    MG_ES_STORE_TYPE=redis make http
+    MG_ES_TYPE=redis make http
     make -j$NPROC
 }