Update nextcloud-axios requirement from ^0.1.2 to ^0.2.0

Updates the requirements on [nextcloud-axios](https://github.com/ChristophWurst/nextcloud-axios) to permit the latest version.
- [Release notes](https://github.com/ChristophWurst/nextcloud-axios/releases)
- [Commits](https://github.com/ChristophWurst/nextcloud-axios/compare/v0.1.2...v0.2.0)

package.json

@@ -27,7 +27,7 @@
 	},
 	"dependencies": {
 		"@babel/polyfill": "^7.0.0",
-		"nextcloud-axios": "^0.1.2",
+		"nextcloud-axios": "^0.2.0",
 		"nextcloud-server": "^0.15.9",
 		"nextcloud-vue": "^0.10.0",
 		"nextcloud-vue-collections": "^0.4.0",