Merge branch 'master' into natsoni/block-first-seen-audit

backend/mempool-config.sample.json

@@ -27,6 +27,7 @@
     "AUTOMATIC_POOLS_UPDATE": false,
     "POOLS_JSON_URL": "https://raw.githubusercontent.com/mempool/mining-pools/master/pools-v2.json",
     "POOLS_JSON_TREE_URL": "https://api.github.com/repos/mempool/mining-pools/git/trees/master",
+    "POOLS_UPDATE_DELAY": 604800,
     "AUDIT": false,
     "RUST_GBT": true,
     "LIMIT_GBT": false,