[PETOSS-829] use latest version of npm

Author: ryanNexus

.github/workflows/pr-health-check.yml

@@ -27,6 +27,9 @@ jobs:
               uses: actions/setup-node@v4
               with:
                 node-version: 20
+
+            - name: Update npm to latest
+              run: npm install -g npm@latest
 
             - name: Install dependencies
               run: npm ci