chore: update @types/node, @types/sinon, fs-extra and add node 16 to ci (#809)

Author: hugomrdias

.github/workflows/main.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-latest, ubuntu-latest, macos-latest]
-        node: [14]
+        node: [14, 16]
       fail-fast: true
     steps:
       - uses: actions/checkout@v2

md/github-actions.md

@@ -31,7 +31,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-latest, ubuntu-latest, macos-latest]
-        node: [12, 14]
+        node: [14, 16]
       fail-fast: true
     steps:
       - uses: actions/checkout@v2

package.json

@@ -63,8 +63,8 @@
     "@types/chai-as-promised": "^7.1.3",
     "@types/chai-subset": "^1.3.3",
     "@types/mocha": "^8.2.2",
-    "@types/node": "^14.14.37",
-    "@types/sinon": "^9.0.11",
+    "@types/node": "^15.6.0",
+    "@types/sinon": "^10.0.0",
     "buffer": "^6.0.3",
     "bytes": "^3.1.0",
     "c8": "^7.7.0",
@@ -87,7 +87,7 @@
     "eslint-config-ipfs": "^2.0.0",
     "execa": "^5.0.0",
     "extract-zip": "^2.0.1",
-    "fs-extra": "^9.1.0",
+    "fs-extra": "^10.0.0",
     "gh-pages": "^3.1.0",
     "git-authors-cli": "^1.0.33",
     "globby": "^11.0.3",