FIx for wrong cache in build action

[kalwalt]

Note this error for build and CI action:

 Post job cleanup.
Warning: Path Validation Error: Path(s) specified in the action for caching do(es) not exist, hence no cache is being saved.

this because in build:

ARnft/.github/workflows/build.yml

Line 26 in a970d57

key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}

and in CI:

ARnft/.github/workflows/CI.yml

Line 25 in a970d57

key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}