ci: Fail-fast "npm ci" if deps require unsupported node version (#912)

When upgrading a dependency to a newer version, it might require a
different node version than before which could be unsupported by the
repo. Unfortunately, this could be easily overseen.
This PR adds the flag `--engine-strict` to the dependency installation
step during the GH Actions job. Incase such a version requirement
change, this flag will now fail-fast the job which should attract
attention.

Author: maxreichmann

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
         node-version: 20.11.0
 
     - name: Install dependencies
-      run: npm ci
+      run: npm ci --engine-strict # --engine-strict is used to fail-fast if deps require node versions unsupported by the repo
 
     - name: Perform ESLint check
       run: npm run lint