ci: fix npm version (#1477)

Signed-off-by: Jan Kowalleck <[email protected]>

Author: jkowalleck

.github/workflows/nodejs.yml

@@ -143,16 +143,12 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
           package-manager-cache: false
-      - # some integration tests require a certain npm version to be installable
-        name: update npm
-        run: |-
-          npm i -g npm@^8
-          npm --version
       - name: enable yarn
-        if: "matrix.node-version != '14.0.0'"  # yarn14 has broken corepack
+        if: "matrix.node-version != '14.0.0'"  # node14 has broken corepack
         run: |-
           corepack enable yarn
           yarn --version
+        working-directory: ..  # prevent evaluation of package.json
       - name: install project
         shell: bash
         run: |