chore: update license in package.json, bump version

package.json

@@ -1,7 +1,8 @@
 {
 	"name": "ebics-client",
-	"version": "0.2.1",
+	"version": "0.3.0",
 	"description": "Node.js ISO 20022 Compliant EBICS Client",
+	"license": "MIT",
 	"main": "index.js",
 	"files": [
 		"lib/**/*",
@@ -57,7 +58,6 @@
 			"url": "https://github.com/Herrie82"
 		}
 	],
-	"license": "GPL-3.0-only",
 	"dependencies": {
 		"handlebars": "^4.7.7",
 		"js2xmlparser": "^4.0.1",