Fixes #756

Updating the supported node versions to match the [current list](https://learn.microsoft.com/en-gb/azure/azure-functions/functions-reference-node?tabs=javascript%2Cwindows%2Cazure-cli&pivots=nodejs-model-v4#supported-versions), including previews.

src/core/func-core-tools.ts

@@ -42,21 +42,21 @@ export function isCoreToolsVersionCompatible(coreToolsVersion: number, nodeVersi
   // Runtime support reference: https://docs.microsoft.com/azure/azure-functions/functions-versions?pivots=programming-language-javascript#languages
   switch (coreToolsVersion) {
     case 4:
-      return nodeVersion >= 14 && nodeVersion <= 18;
+      return nodeVersion >= 18 && nodeVersion <= 20;
     case 3:
-      return nodeVersion >= 10 && nodeVersion <= 14;
+      return nodeVersion >= 14 && nodeVersion <= 20;
     case 2:
-      return nodeVersion >= 8 && nodeVersion <= 10;
+      return nodeVersion >= 10 && nodeVersion <= 14;
     default:
       return false;
   }
 }
 
 export function detectTargetCoreToolsVersion(nodeVersion: number): number {
   // Pick the highest version that is compatible with the specified Node version
-  if (nodeVersion >= 14 && nodeVersion <= 18) return 4;
-  if (nodeVersion >= 10 && nodeVersion < 14) return 3;
-  if (nodeVersion >= 8 && nodeVersion < 10) return 2;
+  if (nodeVersion >= 18 && nodeVersion <= 20) return 4;
+  if (nodeVersion >= 14 && nodeVersion < 20) return 3;
+  if (nodeVersion >= 10 && nodeVersion < 14) return 2;
 
   // Fallback to the latest version for Unsupported Node version
   return 4;