Deprecated Libraries Upgrading Needed

[vw98075]

Overview of the issue

After the initial project build with the command "jhipster", five messages in regarding deprecated libraries show up as the following.

npm WARN deprecated har-validator@5.1.5: this library is no longer supported
npm WARN deprecated uuid@3.4.0: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated popper.js@1.16.1: You can find the new Popper v2 at @popperjs/core, this package is dedicated to the legacy v1
npm WARN deprecated vue@2.7.16: Vue 2 has reached EOL and is no longer actively maintained. See https://v2.vuejs.org/eol/ for more details.

Some of those libraries shall not take too much effort to upgrade.

Vue likely takes some effort to upgrade. Vue 3 was released on September 18, 2020. It is time to get it upgraded.

Motivation for or Use Case

A new project shall use all updated libraries if possible.

Reproduce the error

Related issues

Suggest a Fix

JHipster Version(s)

8.1.0

JHipster configuration

Entity configuration(s) entityName.json files generated in the .jhipster directory

Browsers and Operating System

• Checking this box is mandatory (this is just to show you read everything)

[mshima]

Some of those libraries shall not take too much effort to upgrade.

Looks ok to me.
I will review the PR.

[vw98075]

It likely needs another ticket for Vue. It won't be reasonable to create a new project with EOL components. The JHipster team needs to decide whether Jhipster will continue to have Vue as one of its front-end framework options or not. If yes, Vue needs to be upgraded to the Vue 3.

[mshima]

JHipster is already using Vue 3.
Vue 2 is a transitional dependency that some dependency depends on.
Closing as duplicated of #23865.