chore(devDeps): upgrade dependencies (#102)

* chore(devDeps): upgrade dependencies

* fix ci trigger

* drop support of Node 8 caused by dependencies upgrade

.github/workflows/node.js.yml

@@ -4,14 +4,13 @@ on:
   push:
     branches: [master]
   pull_request:
-    branches: [master]
 
 jobs:
   build:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [8.x, 10.x, 12.x, 14.x, 15.x]
+        node-version: [10.x, 12.x, 14.x, 15.x]
         superagent-version: [3.6.0,3.7.0,3.8.0,4.1.0]
 
     steps:

package.json

@@ -15,16 +15,19 @@
     "type": "git",
     "url": "https://github.com/M6Web/superagent-mock"
   },
+  "engines": {
+    "node": ">=10"
+  },
   "peerDependencies": {
     "superagent": ">=3.6.0"
   },
   "devDependencies": {
     "@babel/cli": "^7.7.4",
-    "@babel/preset-env": "7.7.4",
+    "@babel/preset-env": "^7.13.10",
     "core-js": "^3.4.7",
-    "cross-env": "^6.0.3",
-    "eslint": "^5.16.0",
-    "jest": "^24.9.0",
+    "cross-env": "^7.0.3",
+    "eslint": "^7.22.0",
+    "jest": "^26.6.3",
     "rimraf": "^3.0.0",
     "superagent": "^3.6.0"
   },