feat: add support for node v20 (#2303)

* run tests on node v20

* update linter to node v16

* update docs

* update browser node version

* update checkout

.github/workflows/codeql-analysis.yml

@@ -35,7 +35,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/nodejs.yml

@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x]
+        node-version: [16.x]
 
     steps:
       - uses: actions/checkout@v3
@@ -57,7 +57,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x]
+        node-version: [14.x, 16.x, 18.x, 20.x]
 
     steps:
       - uses: actions/checkout@v3
@@ -98,7 +98,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x]
+        node-version: [14.x, 16.x, 18.x, 20.x]
 
     steps:
       - uses: actions/checkout@v3
@@ -150,7 +150,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x] # This just needs to be compatible w/ puppeteer
+        node-version: [16.x]
 
     steps:
       - uses: actions/checkout@v3

CONTRIBUTING.md

@@ -12,7 +12,7 @@
 
 ### Requirements
 
-We use Node v14 for development - that is the version that our linters require.
+We use Node v16 for development - that is the version that our linters require.
 You must also use `npm` v7. You can check your `npm` version with:
 
 ```bash

README.md

@@ -25,7 +25,7 @@ All of which works in Node.js (tested for v14+) & web browsers (tested for Chrom
 
 ### Requirements
 
-+ **[Node.js v14](https://nodejs.org/)** is recommended. We also support v16 and v18. Other versions may work but are not frequently tested.
++ **[Node.js v16](https://nodejs.org/)** is recommended. We also support v14, v18 and v20. Other versions may work but are not frequently tested.
 
 ### Installing xrpl.js