update dependencies to latest and in the future accept more minor version updates

app/redisCache.js

@@ -1,5 +1,4 @@
 var redis = require("redis");
-var bluebird = require("bluebird");
 
 var config = require("./config.js");
 var utils = require("./utils.js");

package.json

@@ -20,33 +20,33 @@
     "url": "git+https://github.com/janoside/btc-rpc-explorer.git"
   },
   "dependencies": {
-    "async": "2.6.2",
+    "async": "^3.1.0",
     "basic-auth": "^2.0.1",
-    "bitcoin-core": "2.0.0",
-    "bitcoinjs-lib": "5.0.3",
+    "bitcoin-core": "^2.3.0",
+    "bitcoinjs-lib": "^5.1.6",
     "body-parser": "~1.19.0",
     "cookie-parser": "^1.4.4",
     "crypto-js": "3.1.9-1",
     "csurf": "^1.10.0",
     "debug": "~4.1.1",
-    "decimal.js": "10.1.1",
-    "dotenv": "^8.1.0",
+    "decimal.js": "^10.2.0",
+    "dotenv": "^8.2.0",
     "electrum-client": "github:chaintools/node-electrum-client#43a999036f9c5",
     "express": "^4.17.1",
-    "express-session": "1.16.1",
+    "express-session": "^1.17.0",
     "jstransformer-markdown-it": "^2.1.0",
-    "lru-cache": "5.1.1",
-    "marked": "0.7.0",
+    "lru-cache": "^5.1.1",
+    "marked": "^0.7.0",
     "meow": "^5.0.0",
     "moment": "^2.24.0",
-    "moment-duration-format": "2.2.2",
+    "moment-duration-format": "^2.3.2",
     "morgan": "^1.9.1",
-    "pug": "2.0.3",
-    "qrcode": "1.3.3",
-    "redis": "2.8.0",
-    "request": "2.88.0",
+    "pug": "^2.0.4",
+    "qrcode": "^1.4.4",
+    "redis": "^2.8.0",
+    "request": "^2.88.0",
     "serve-favicon": "^2.5.0",
-    "simple-git": "1.112.0"
+    "simple-git": "^1.126.0"
   },
   "devDependencies": {
     "less": "3.9.0",