build: Upgrade to Node 20

.nvmrc

@@ -1 +1 @@
-18.16.1
+20

README.md

@@ -10,7 +10,7 @@ The Goal of this POC is to provide a working example of an Open edX frontend dep
 
 ## Running
 
-Node.js version 18.16.1 was used to develop this prototype. Other versions may work but they are untested. Please consider using nvm for easy compatibility. 
+Node.js version 20 was used to develop this prototype. Other versions may work but they are untested. Please consider using nvm for easy compatibility. 
 
 ### Running:
 **Make sure you have Open edX [devstack](https://github.com/openedx/devstack) with lms running before trying this**

bin/install.js

@@ -31,7 +31,7 @@ async function processRepository(repo) {
 }
 
 
-const requiredNodeVersion = 'v18.16.1';
+const requiredNodeVersion = 'v20';
 
 async function verifyNodeVersion() {
   const { stdout } = await exec('node -v');