chore: stop pinning the axios dep to a precise version (#1150)

Use the recent improvement of lostpebble/generate-package-json-webpack-plugin#49 to propagate
a caret version of the axios dep in the released package.

Fixes #796

Author: pcorpet

apps/generator-cli/webpack.config.js

@@ -32,7 +32,7 @@ module.exports = composePlugins(
       dependencies: {
         'reflect-metadata': '',
         '@nuxtjs/opencollective': '',
-        axios: '',
+        axios: '^',
       },
     };