do not run yarn at monorepo level in ci

.github/workflows/ci.yaml

@@ -39,8 +39,8 @@ jobs:
         working-directory: packages/squiggle-lang
     steps:
     - uses: actions/checkout@v2
-    - name: Install packages from monorepo level
-      run: cd ../../ && yarn
+    # - name: Install packages from monorepo level
+    #   run: cd ../../ && yarn
     - name: Install packages
       run: yarn 
     - name: Build rescript codebase
@@ -79,8 +79,8 @@ jobs:
           dist
           node_modules
         key: ${{ github.sha }}
-    - name: Install packages from monorepo level
-      run: cd ../../ && yarn
+    # - name: Install packages from monorepo level
+    #   run: cd ../../ && yarn
     - name: Install packages for components package
       run: yarn
     - name: Run tsc and webpack