[CLI] Add `foal upgrade [version]` command

[LoicPoullain]

Issue

Resolves #1158.

Solution and steps

• [x] Support foal upgrade with a specific given version.
• [x] Support foal upgrade with no given version.
• [x] Trigger yarn or npm install in foal upgrade.

Checklist

• [x] Add/update/check docs (code comments and docs/ folder).
• [x] Add/update/check tests.
• [x] Update/check the cli generators.

[codecov-commenter]

Codecov Report

Base: 98.86% // Head: 98.86% // No change to project coverage :thumbsup:

Coverage data is based on head (b7861ad) compared to base (a6f15e5). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## v3-1-0 #1193 +/- ## ======================================= Coverage 98.86% 98.86% ======================================= Files 96 96 Lines 1668 1668 Branches 388 388 ======================================= Hits 1649 1649 Misses 19 19 ``` Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=FoalTS). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=FoalTS)

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