chore(deps): update dependency cockroachdb/cockroach to v21.2.7 (#102)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

docker/cockroachdb/docker-compose.yaml

@@ -2,7 +2,7 @@ version: "3.8"
 
 services:
   cockroachdb:
-    image: cockroachdb/cockroach:v21.2.6
+    image: cockroachdb/cockroach:v21.2.7
     hostname: cockroachdb
     ports:
       - 26257:26257