test: fix node dependencies (#223)

# What ❔

fix npm issues 

## Why ❔

Conflict in react packages: To resolve build with latest deps first. 

## Checklist


- [ ] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [ ] Tests for the changes have been added / updated.
- [ ] Documentation comments have been added / updated.

.github/workflows/docs-test-build.yaml

@@ -19,8 +19,7 @@ jobs:
           node-version: 20
           cache: npm
       - name: Install dependencies
-        working-directory: ./packages/testing-docs
-        run: npm i
+        run: npm ci
       - name: Build website
         working-directory: ./packages/testing-docs
         run: npm run build

.github/workflows/docs-test-deploy.yaml

@@ -35,5 +35,5 @@ jobs:
         run: |
           git config --global user.email "[email protected]"
           git config --global user.name "gh-actions"
-          npm i
+          npm ci
           npm run deploy

.github/workflows/validate-pr.yml

@@ -38,7 +38,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: '20'
+          node-version: '18'
           cache: 'npm'
 
       - name: Install dependencies