Upgrade yeoman to v5

packages/generator-joplin/generators/app/index.js

@@ -12,6 +12,7 @@ module.exports = class extends Generator {
 
 		this.option('silent');
 		this.option('update');
+		this.option('nodePackageManager', 'npm');
 
 		if (this.options.update) {
 			// When updating, overwrite files without prompting
@@ -174,11 +175,4 @@ module.exports = class extends Generator {
 		);
 	}
 
-	install() {
-		this.installDependencies({
-			npm: true,
-			bower: false,
-			yarn: false,
-		});
-	}
 };

packages/generator-joplin/package.json

@@ -1,6 +1,6 @@
 {
   "name": "generator-joplin",
-  "version": "2.9.0",
+  "version": "2.9.1",
   "description": "Scaffolds out a new Joplin plugin",
   "homepage": "https://github.com/laurent22/joplin/tree/dev/packages/generator-joplin",
   "author": {
@@ -25,7 +25,7 @@
   "dependencies": {
     "chalk": "2.4.2",
     "slugify": "1.6.5",
-    "yeoman-generator": "2.0.5",
+    "yeoman-generator": "5.7.0",
     "yosay": "2.0.2"
   },
   "devDependencies": {