chore: Remove install script in GitHub Actions (#3020)

This script is actually not needed for our testing purpose. This was
initially in #2910 added, since we call `--ignore-scripts` before, which
doesn't call the `postinstall` script (so it was mainly added to keep
the same functionality as before).

This line actually also caused issues for our release process - that
should be fixed now

Author: JPeer264

.github/workflows/test_node.yml

@@ -102,9 +102,6 @@ jobs:
           name: artifact-build
           path: js
 
-      - name: Install CLI
-        run: npm run install-cli
-
       # older node versions need an older nft
       - run: SENTRYCLI_SKIP_DOWNLOAD=1 npm install @vercel/[email protected]
         if: matrix.node-version == '10.x' || matrix.node-version == '12.x'