Update electrum-cash version

package-lock.json

@@ -1402,6 +1402,21 @@
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     },
+    "async-mutex": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/async-mutex/-/async-mutex-0.2.4.tgz",
+      "integrity": "sha512-fcQKOXUKMQc57JlmjBCHtkKNrfGpHyR7vu18RfuLfeTAf4hK9PgOadPR5cDrBQ682zasrLUhJFe7EKAHJOduDg==",
+      "requires": {
+        "tslib": "^2.0.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.0.1.tgz",
+          "integrity": "sha512-SgIkNheinmEBgx1IUNirK0TUD4X9yjjBRTqqjggWCU3pUEqIk3/Uwl3yRixYKT6WjQuGiwDv4NomL3wqRCj+CQ=="
+        }
+      }
+    },
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -4424,10 +4439,11 @@
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
     "electrum-cash": {
-      "version": "1.0.1",
+      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/electrum-cash/-/electrum-cash-1.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/electrum-cash/-/electrum-cash-1.2.0.tgz",
-      "integrity": "sha512-snMgRt6JzsHdCdf+Un1rLj4RXjje1WuFVTx3Xx+6mitEibYalmD+x0ts146VF4Ki3+42DQKXtQXl0bzCAY7Jtw==",
+      "integrity": "sha512-NZarCF2U+6uXYd697GYAuP3qdDaFUx+6zWcO8SzyeNyRCNZaUm/rscUAm7+QCgNpUnj8tEGdLj5LG2mchaZRSQ==",
       "requires": {
+        "async-mutex": "^0.2.4",
         "debug": "^4.1.1"
       }
     },

package.json

@@ -37,7 +37,7 @@
     "cors": "^2.8.3",
     "debug": "~4.1.1",
     "dotenv": "^8.0.0",
-    "electrum-cash": "^1.0.1",
+    "electrum-cash": "^1.2.0",
     "express": "^4.15.5",
     "express-basic-auth": "^1.1.3",
     "express-rate-limit": "^5.0.0",