fix(ci): remove npm cache from promptfoo workflow - no package-lock.json (#219)

Removed caching for npm in Node.js setup.

Signed-off-by: Igor <romanchaa997@gmail.com>

Author: romanchaa997

.github/workflows/promptfoo-ai-security.yml

@@ -23,7 +23,7 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: '20'
-          cache: 'npm'
+        
 
       - name: Install promptfoo
         run: npm install -g promptfoo