Update BLOCKSCOUT_BACKEND_DOCKER_TAG to version 2.2.1 in docker-compose.yaml

Author: yavrsky

docker-compose.yaml

@@ -14,7 +14,7 @@ services:
       HOST_DIR_PATH: ${HOST_DIR_PATH}
       SSL_ENABLED: ${SSL_ENABLED:-true}
       IS_TESTNET: ${IS_TESTNET:-false}
-      BLOCKSCOUT_BACKEND_DOCKER_TAG: ${BLOCKSCOUT_BACKEND_DOCKER_TAG:-2.2.0}
+      BLOCKSCOUT_BACKEND_DOCKER_TAG: ${BLOCKSCOUT_BACKEND_DOCKER_TAG:-2.2.1}
       BLOCKSCOUT_FRONTEND_DOCKER_TAG: ${BLOCKSCOUT_FRONTEND_DOCKER_TAG:-1.1.0}
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock