chore: update supported node versions to 14, 16, 18, and 20 (#281)

.github/workflows/ci.yaml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [ 14, 16, 18, 19 ]
+        node: [14, 16, 18, 20]
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4

README.md

@@ -8,7 +8,7 @@
 
 ## Prerequisites
 1. Your application will need to be using Node.js 14 or greater. This package is tested against
-[current versions of Node.js][node-versions]: 14, 16, 18, and 19.
+[current versions of Node.js][node-versions]: 14, 16, 18, and 20.
 
 2. The `pprof` module has a native component that is used to collect profiles 
 with v8's CPU and Heap profilers. You may need to install additional

system-test/system_test.sh

@@ -14,7 +14,7 @@ cd $(dirname $0)
 # official releases. https://nodejs.org/en/about/releases/
 if [[ -z "$BINARY_HOST" ]]; then
   ADDITIONAL_PACKAGES="python3 g++ make"
-  NODE_VERSIONS=(14 16 18 19)
+  NODE_VERSIONS=(14 16 18 20)
 else
   # Tested versions for pre-built binaries are limited based on
   # what node-pre-gyp can specify as its target version.