Update docker.io/openpolicyagent/opa Docker tag to v1

Author: renovate[bot]

docker-compose/docker-compose.yml

@@ -2,7 +2,7 @@ version: '3.7'
 
 services:
   opa:
-    image: ${OPENPOLICYAGENT_DOCKER_IMAGE:-docker.io/openpolicyagent/opa:0.70.0-debug}
+    image: ${OPENPOLICYAGENT_DOCKER_IMAGE:-docker.io/openpolicyagent/opa:1.2.0-debug}
     ports:
       - "8181:8181"
     # WARNING: OPA is NOT running with an authorization policy configured. This