feat!: update to node 18 ECF-280

[christophehurpeau]

Context

Node 16 is no longer supported

Solution

• Update to node 18
• Add eslint rule forbid-fetch-import as fetch is available natively in node 18
• Enable unicorn/prefer-node-protocol

[reviewflow]

Progress

☑️ Step 1: ✏️ Write code
☑️ Step 2: 💚 Checks
☑️ Step 3: 👌 Code Review
☑️ Step 4: 🚦 Merge Pull Request

Infos:

✓ JIRA issue: ECF-280

Options:

• 🔜 automerge: Automatically merge when this PR is ready and has no failed statuses. When the repository requires branches to be up to date before merging, it merges default branch, with a queue per repo to prevent multiple merges when several PRs are ready. A fail job prevents the merge.
• 🚦 skip-ci: Add [skip ci] on merge commit when merge is done with autoMerge.

Actions:

• 🐛 Force updating reviewflow checks for this PR. Use this to try to fix reviewflow checks that are still missing/pending, which might happen if webhook failed or something bad happened when reviewflow tried to send the status check to github.
• 🔄 update branch: Merge base branch in this PR's branch. Only works if merging is possible without conflicts.