Remove yarn caching from ubuntu steps in run_unit_tests

Author: rflamand

.github/workflows/run_unit_tests.yml

@@ -22,14 +22,10 @@ jobs:
         with:
           version: 4.0.19
           actions-cache-folder: ".emsdk-cache"
-      - name: Setup Node with yarn cache
+      - name: Setup Node
         uses: actions/setup-node@v4
         with:
           node-version: "22.16.0"
-          cache: "yarn"
-          cache-dependency-path: |
-            package.json
-            yarn.lock
       - name: Install yarn package manager
         run: npm install --global yarn
       - name: Install dependencies