chore: support Node.js 15, 16, 17 (#73)

* chore: support Node.js 15, 16, 17

* doc: update README

* chore: update CHANGELOG

* chore: update package-lock

* chore: revert package-lock version change

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        nodejs: ['8', '10', '12', '14']
+        nodejs: ['8', '10', '12', '14', '15', '16', '17']
     steps:
       - name: Checkout
         uses: actions/checkout@v1

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+- Extend supported Node.js versions to 17.
+  ([#73](https://github.com/signalfx/signalfx-nodejs/pull/73))
+
 ## 7.4.0
 
 - Extend supported Node.js versions to latest LTS

README.md

@@ -25,7 +25,7 @@ $ npm install signalfx
 
 | Version | Node.js       |
 | ------- | ------------- |
-| `7.4.x` | `>=8.0.0 <15` |
+| `7.4.x` | `>=8.0.0 <18` |
 | `7.3.1` | `>=8.0.0 <11` |
 
 ## Usage