Mark node 20.6.0 as the minimum working version

Change-type: patch

INSTALL-ADVANCED.md

@@ -78,7 +78,7 @@ If you are a Node.js developer, you may wish to install the balena CLI via [npm]
 The npm installation involves building native (platform-specific) binary modules, which require
 some development tools to be installed first, as follows.
 
-> **The balena CLI currently requires Node.js version 20.**
+> **The balena CLI currently requires Node.js version ^20.6.0**
 > **Versions 21 and later are not yet fully supported.**
 
 ### Install development tools

npm-shrinkwrap.json

@@ -180,7 +180,7 @@
         "typescript": "^5.3.2"
       },
       "engines": {
-        "node": ">=20 <21"
+        "node": "^20.6.0"
       },
       "optionalDependencies": {
         "windosu": "^0.3.0"

package.json

@@ -92,7 +92,7 @@
   "author": "Balena Inc. (https://balena.io/)",
   "license": "Apache-2.0",
   "engines": {
-    "node": ">=20 <21"
+    "node": "^20.6.0"
   },
   "husky": {
     "hooks": {